Patents by Inventor Minoru Wada

Minoru Wada has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20220404734
    Abstract: An image forming device includes photoconductor drum that rotates around axis and has drum circumferential face on which electrostatic latent image is formed, and developing unit that supplies developer to photoconductor drum thereby to manifest electrostatic latent image into developer image. The developing unit includes developing housing, developing roller supported by developing housing to be rotatable around axis, has first circumferential face that faces drum circumferential face and carries developer, and supplies carried developer to drum circumferential face, and restricting blade that contacts first circumferential face, and restricts amount of developer to be carried on first circumferential face, and first circumferential face has value of 4.
    Type: Application
    Filed: January 21, 2021
    Publication date: December 22, 2022
    Inventors: Takahisa NAKAUE, Kotatsu KAWAGUCHI, Masahito ISHINO, Yukari OTA, Tomohiro TAMAKI, Minoru WADA
  • Publication number: 20220107581
    Abstract: An image forming apparatus includes an image-carrying member, a charging device, an exposure device, and a developing device. The charging device charges a surface of the image-carrying member. The exposure device writes an electrostatic latent image on the surface of the image-carrying member by exposing the charged surface of the image-carrying member. The developing device includes a developing roller and a bias output circuit. The bias output circuit applies a developing bias to the developing roller. A potential VH of a non-exposure portion charged on the surface of the image-carrying member, a potential VL of an exposure portion on the surface of the image-carrying member, and the developing bias VDD meet a relationship of VH?VDD?2 (VDD?VL). In addition, a difference between the developing bias VDD and the potential VL of the exposure portion (VDD?VL) is 100 V or more.
    Type: Application
    Filed: September 27, 2021
    Publication date: April 7, 2022
    Inventors: Minoru Wada, Masahito Ishino, Takahisa Nakaue, Yukari Ota, Tomohiro Tamaki
  • Patent number: 11150578
    Abstract: A developing device includes a developing container, a first stirring member and a second stirring member, and a developing roller. The developing container includes a first stirring chamber, a second stirring chamber, and a communication portion. The first stirring member includes a reverse spiral vane that conveys a developer in a direction reverse to a circulation direction. An air discharge duct is formed on a wall portion of the first stirring chamber opposed to the reverse spiral vane and in an area excluding the communication portion and discharges air from the first stirring chamber to an outside of the developing container via an air discharge port at a distal end of the air discharge duct. A filtration portion is disposed in the air discharge duct adjacently to the air discharge port and restricts leakage of the developer through the air discharge port.
    Type: Grant
    Filed: August 17, 2020
    Date of Patent: October 19, 2021
    Assignee: KYOCERA Document Solutions Inc.
    Inventors: Minoru Wada, Yuji Kamiyama, Ikuo Makie, Yu Sasaki, Yukari Ota, Ryo Yamada
  • Patent number: 11039029
    Abstract: An information processing apparatus manages an image forming apparatus installed in a building having a plurality of areas. The information processing apparatus includes an installation area information storage device, containing installation area information indicating each of the areas where the image forming apparatus is installed, a communication device that makes communication with an external apparatus, and a control device including a processor, and configured to acts as a controller, when the processor executes an operation control program. The controller transmits, when an abnormality detection device, provided in each of the areas to detect an abnormality that has occurred in the area, detects the abnormality, a command notice to turn off power for the image forming apparatus installed in the area where the abnormality has occurred, from the communication device to the image forming apparatus, according to the installation area information stored in the installation area information storage device.
    Type: Grant
    Filed: October 22, 2019
    Date of Patent: June 15, 2021
    Assignee: KYOCERA Document Solutions Inc.
    Inventors: Minoru Wada, Nobuhiro Maezawa
  • Patent number: 10979589
    Abstract: A control system includes: image forming apparatuses at least one of which is installed in each of a plurality of areas in a building; a management apparatus; and alarms that are each provided for each of the areas, respectively. The management apparatus manages security of the building including the plurality of areas, detects an abnormal high temperature occurrence area by identifying the area in which the image forming apparatus from which the abnormal high temperature is detected is installed when the abnormal high temperature is detected in the image forming apparatus, and transmits a report command notification for reporting that the abnormal high temperature has occurred in the area in which an alarm is provided to the alarm which is provided in the abnormal high temperature occurrence area.
    Type: Grant
    Filed: January 3, 2020
    Date of Patent: April 13, 2021
    Assignee: KYOCERA Document Solutions Inc.
    Inventor: Minoru Wada
  • Publication number: 20210055674
    Abstract: A developing device includes a developing container, a first stirring member and a second stirring member, and a developing roller. The developing container includes a first stirring chamber, a second stirring chamber, and a communication portion. The first stirring member includes a reverse spiral vane that conveys a developer in a direction reverse to a circulation direction. An air discharge duct is formed on a wall portion of the first stirring chamber opposed to the reverse spiral vane and in an area excluding the communication portion and discharges air from the first stirring chamber to an outside of the developing container via an air discharge port at a distal end of the air discharge duct. A filtration portion is disposed in the air discharge duct adjacently to the air discharge port and restricts leakage of the developer through the air discharge port.
    Type: Application
    Filed: August 17, 2020
    Publication date: February 25, 2021
    Applicant: KYOCERA Document Solutions Inc.
    Inventors: Minoru WADA, Yuji KAMIYAMA, Ikuo MAKIE, Yu SASAKI, Yukari OTA, Ryo YAMADA
  • Publication number: 20200236239
    Abstract: A control system includes: image forming apparatuses at least one of which is installed in each of a plurality of areas in a building; a management apparatus; and alarms that are each provided for each of the areas, respectively. The management apparatus manages security of the building including the plurality of areas, detects an abnormal high temperature occurrence area by identifying the area in which the image forming apparatus from which the abnormal high temperature is detected is installed when the abnormal high temperature is detected in the image forming apparatus, and transmits a report command notification for reporting that the abnormal high temperature has occurred in the area in which an alarm is provided to the alarm which is provided in the abnormal high temperature occurrence area.
    Type: Application
    Filed: January 3, 2020
    Publication date: July 23, 2020
    Applicant: KYOCERA Document Solutions Inc.
    Inventor: Minoru WADA
  • Publication number: 20200137251
    Abstract: An information processing apparatus manages an image forming apparatus installed in a building having a plurality of areas. The information processing apparatus includes an installation area information storage device, containing installation area information indicating each of the areas where the image forming apparatus is installed, a communication device that makes communication with an external apparatus, and a control device including a processor, and configured to acts as a controller, when the processor executes an operation control program. The controller transmits, when an abnormality detection device, provided in each of the areas to detect an abnormality that has occurred in the area, detects the abnormality, a command notice to turn off power for the image forming apparatus installed in the area where the abnormality has occurred, from the communication device to the image forming apparatus, according to the installation area information stored in the installation area information storage device.
    Type: Application
    Filed: October 22, 2019
    Publication date: April 30, 2020
    Applicant: KYOCERA Document Solutions Inc.
    Inventors: Minoru WADA, Nobuhiro MAEZAWA
  • Publication number: 20200137252
    Abstract: An information processing apparatus includes: a storage device that stores installation area information indicating an area where an image forming apparatus is installed; a communication device; and a control device. The control device functions as a controller that, in accordance with the number of persons present per area obtainable based on detection information acquired by an entry and exit detecting device, determines, per area indicated by the installation area information, a state of the image forming apparatus installed in each area, and transmits a command notice for changing the state of the image forming apparatus into the determined state, via the communication device, to the image forming apparatus installed in each of the areas. The controller transmits the command notice for changing the state of the image forming apparatus into a predetermined state where power consumption is more reduced, as the number of persons present in the area decreases.
    Type: Application
    Filed: October 22, 2019
    Publication date: April 30, 2020
    Applicant: KYOCERA Document Solutions Inc.
    Inventor: Minoru WADA
  • Patent number: 9885972
    Abstract: An image forming includes an apparatus main body, a photoreceptor drum, a charging apparatus, a developing device, a transfer apparatus, a charging bias applying unit, a developing bias applying unit, a bias adjusting unit, and a print density measurement unit. The bias adjusting unit forms a non-charged area on a circumference surface of the photoreceptor drum and applies a developing bias constituted of a first electric potential to a developing roller to form a first toner image by an electric potential difference between the non-charged area and the developing roller. The charging bias applying unit forms a second toner image by an electric potential difference between the electric potential area and the developing roller. The charging bias applying unit decides a value of a charging bias corresponding to a target electric potential from measurement results of print densities of the first toner image and the second toner image.
    Type: Grant
    Filed: September 27, 2016
    Date of Patent: February 6, 2018
    Assignee: KYOCERA Document Solutions Inc.
    Inventors: Minoru Wada, Masaru Hatano, Masaki Kadota, Masahito Ishino, Keisuke Isoda, Atsushi Ishizaki
  • Patent number: 9856625
    Abstract: A working vehicle includes: a vehicle body; and a boom; a bucket; a boom driving unit including a boom cylinder; a bucket driving unit configured to swing the bucket; a boom-bottom pressure sensor configured to detect a boom-bottom pressure of the boom cylinder; and a working equipment controller configured to control at least one of a lift motion of the boom and a tilt motion of the bucket. The bucket includes an inclined portion. The working equipment controller controls the lift motion or the tilt motion by comparing a threshold set in accordance with an inclination angle of the inclined portion with the boom-bottom pressure.
    Type: Grant
    Filed: August 7, 2015
    Date of Patent: January 2, 2018
    Assignee: Komatsu Ltd.
    Inventors: Minoru Wada, Toshiyuki Ohta, Toshimitsu Honda, Katsuhiro Tsutsumi, Takaya Kobayashi, Yosuke Yamagoe
  • Patent number: 9829829
    Abstract: A developing device includes a developing roller, a conveyor roller, a developer stirring unit and a development bias applying unit. The developing roller is arranged to face a photoconductive drum at a predetermined developing position and supplies the toner. The conveyor roller is arranged to face the developing roller at a predetermined facing position and supplies the developer to the developing roller. The development bias applying unit applies development biases to the first sleeve of the developing roller and the second sleeve of the conveyor roller during a developing operation of developing the electrostatic latent image on the photoconductive drum with the toner. The development bias applying unit applies the development biases such that a shifting electric field to move the toner on the first sleeve of the developing roller toward the second sleeve of the conveyor roller is formed at the facing position during the developing operation.
    Type: Grant
    Filed: March 13, 2017
    Date of Patent: November 28, 2017
    Assignee: KYOCERA DOCUMENT SOLUTIONS INC.
    Inventors: Tamotsu Shimizu, Eiji Gyotoku, Akihiro Watanabe, Norio Kubo, Minoru Wada, Ryo Taniguchi, Yasushi Imanishi, Takahiro Okubo
  • Patent number: 9809948
    Abstract: In controlling a work vehicle including a boom supported by a vehicle body and configured to turn, and a bucket supported by a side, away from the vehicle body, of the boom and configured to turn according to an operation of an actuator, an operation amount for raising the boom or a rising speed of the boom, and an operable amount that the actuator is able to operate before the bucket reaches a stop position on the dump side based on the posture of the boom and the posture of the bucket, are obtained, and an operation amount of the actuator for causing the bucket to tilt is changed based on the operation amount for raising the boom or the rising speed of the boom to thereby cause the bucket to tilt according to the operable amount.
    Type: Grant
    Filed: May 30, 2014
    Date of Patent: November 7, 2017
    Assignee: Komatsu Ltd.
    Inventors: Masaaki Imaizumi, Minoru Wada, Yoshiaki Saito
  • Patent number: 9788701
    Abstract: According to a nonwoven fabric substrate (1) for wiping sheet of the invention, ridges (2) and grooves (3) are alternately formed at positions corresponding to each other on both surfaces (1a, 1b), and apertures (4) are formed in the grooves (3). Each of the ridges (2) and the grooves (3) extend parallel to one side of the nonwoven fabric substrate (1). Each of the grooves (3) alternately includes an aperture portion (3h) which has a plurality of the apertures (4), and a non-aperture portion (3n) which has no aperture (4) and is longer than a distance between the nearest end portions of the adjacent apertures (4) in the aperture portion (3h). An arrangement pattern of the aperture portion (3h) and the non-aperture portion (3n) provided in the groove (3a) is different from an arrangement pattern of the aperture portion (3h) and the non-aperture portion (3n) provided in an adjacent groove (3b).
    Type: Grant
    Filed: November 8, 2013
    Date of Patent: October 17, 2017
    Assignee: KAO CORPORATION
    Inventors: Taeko Hayase, Emiko Shirasaki, Minoru Wada
  • Patent number: 9782051
    Abstract: Provided is a nonwoven fabric substrate (1) in which ridges (2) and grooves (3) are alternately formed at positions corresponding to each other on each of both surfaces (1a, 1b), and apertures (4) penetrating the grooves (3) of both surfaces are formed. The ridges (2) and the grooves (3) extend parallel to each other. The ridges (2) and the grooves (3) extend in a direction intersecting with each of a pair of both sides (1c, 1d) extending in parallel of the nonwoven fabric substrate (1). In planar view, each of the grooves (3) alternately includes an aperture portion (3h) which has a plurality of the apertures (4), and a non-aperture portion which has no aperture (4) and is longer than a distance between the nearest end portions of the adjacent apertures (4) in the aperture portion (3h), and arrangement patterns of the aperture portion (3h) and the non-aperture portion (3n) provided in the adjacent grooves (3) are different from each other.
    Type: Grant
    Filed: November 8, 2013
    Date of Patent: October 10, 2017
    Assignee: KAO CORPORATION
    Inventors: Taeko Hayase, Emiko Shirasaki, Minoru Wada
  • Patent number: 9785084
    Abstract: An image forming apparatus includes an apparatus main body, a photoreceptor drum, a charging apparatus, a developing device, a transfer apparatus, a charging bias applying unit, a developing bias applying unit, a bias adjusting unit, and a print density measurement unit. The bias adjusting unit controls the charging bias applying unit to form a plurality of electric potential areas of electric potentials with different magnitudes. The bias adjusting unit applies a predetermined developing bias corresponding to a target electric potential to the developing roller, so as to form a plurality of toner images by electric potential differences between the developing bias and the plurality of electric potential areas. The bias adjusting unit decides a value of a charging bias corresponding to the target electric potential from measurement results of print densities of the plurality of toner images measured by the print density measurement unit.
    Type: Grant
    Filed: September 27, 2016
    Date of Patent: October 10, 2017
    Assignee: KYOCERA Document Solutions Inc.
    Inventors: Minoru Wada, Masaru Hatano, Masaki Kadota, Masahito Ishino, Keisuke Isoda, Atsushi Ishizaki
  • Publication number: 20170269508
    Abstract: A developing device includes a developing roller, a conveyor roller, a developer stirring unit and a development bias applying unit. The developing roller is arranged to face a photoconductive drum at a predetermined developing position and supplies the toner. The conveyor roller is arranged to face the developing roller at a predetermined facing position and supplies the developer to the developing roller. The development bias applying unit applies development biases to the first sleeve of the developing roller and the second sleeve of the conveyor roller during a developing operation of developing the electrostatic latent image on the photoconductive drum with the toner. The development bias applying unit applies the development biases such that a shifting electric field to move the toner on the first sleeve of the developing roller toward the second sleeve of the conveyor roller is formed at the facing position during the developing operation.
    Type: Application
    Filed: March 13, 2017
    Publication date: September 21, 2017
    Inventors: Tamotsu Shimizu, Eiji Gyotoku, Akihiro Watanabe, Norio Kubo, Minoru Wada, Ryo Taniguchi, Yasushi Imanishi, Takahiro Okubo
  • Patent number: 9740134
    Abstract: An image forming apparatus includes an apparatus main body, a photoreceptor drum, a charging apparatus, an exposure apparatus, a developing device, a charging bias applying unit, a developing bias applying unit, an image condition adjusting unit, and a print density measurement unit. The image condition adjusting unit forms a second electric potential region by applying the charging bias where a first differential electric potential is subtracted from a first tentative charging bias on a circumference surface of a photoreceptor drum, and forms a second toner image by an electric potential difference between the second electric potential region and a developing roller by applying the target electric potential. The image condition adjusting unit decides value of the charging bias corresponding to the target electric potential from measurement results of print densities of a first toner image and the second toner image measured by the print density measurement unit.
    Type: Grant
    Filed: November 8, 2016
    Date of Patent: August 22, 2017
    Assignee: KYOCERA Document Solutions Inc.
    Inventors: Minoru Wada, Masaru Hatano, Masaki Kadota, Masahito Ishino, Keisuke Isoda, Atsushi Ishizaki
  • Patent number: 9732494
    Abstract: A bucket with a linear lower front edge includes: a first straight portion horizontally extending from the lower front edge toward an innermost of the bucket; an inclined portion continuous with a rear edge of the first straight portion, the inclined portion further extending toward the innermost of the bucket while being inclined upward; a curve continuous with a rear edge of the inclined portion at a lower edge of the curve, the curve having a predetermined bucket radius; a second straight portion continuous with an upper edge of the curve, the second straight portion being inclined upward toward a bucket opening; and a third straight portion bent at a bent portion toward the bucket opening relative to a front edge of the second straight portion, the third straight portion further extending toward the bucket opening.
    Type: Grant
    Filed: July 15, 2015
    Date of Patent: August 15, 2017
    Assignee: Komatsu Ltd.
    Inventors: Toshimitsu Honda, Toshiyuki Ohta, Minoru Wada, Katsuhiro Tsutsumi, Takaya Kobayashi
  • Patent number: 9719229
    Abstract: A bucket with a blade-shaped lower front edge includes: a first straight portion horizontally extending from the lower front edge toward an innermost of the bucket; a curve continuous with a rear edge of the first straight portion at a lower edge of the curve, the curve having a predetermined bucket radius; a second straight portion continuous with an upper edge of the curve, the second straight portion being inclined upward toward a bucket opening; a third straight portion bent at a bent portion toward the bucket opening relative to a front edge of the second straight portion, the third straight portion further extending toward the bucket opening; a reinforcing member provided on an exterior surface of the third straight portion to reinforce of the exterior surface; and a connecting portion provided behind the curve.
    Type: Grant
    Filed: July 15, 2015
    Date of Patent: August 1, 2017
    Assignee: Komatsu Ltd.
    Inventors: Norihito Bandou, Takeshi Saoyama, Minoru Wada, Toshiyuki Ohta, Toshimitsu Honda, Katsuhiro Tsutsumi, Takaya Kobayashi, Takayasu Wakamoto