Patents by Inventor Yoshiyuki Fukuda

Yoshiyuki Fukuda 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).

  • Patent number: 10675495
    Abstract: A CT value controller includes a storage means, an input means, and a computing means. The storage means stores a function expressing a relative humidity and a CT value regarding a degradation degree of an anticancer agent, an assumed relative humidity, and a CT setting. The input means inputs a measured relative humidity and a measured ozone concentration at a time of degradation treatment of the anticancer agent. The computing means calculates a corrected CT value increment based on a difference between the measured relative humidity and the assumed relative humidity at every input of the relative humidity and the ozone concentration by using the function. The computing means determines a termination of the degradation treatment of the anticancer agent when an integrated CT value of the corrected CT value increments reaches the CT setting.
    Type: Grant
    Filed: March 14, 2018
    Date of Patent: June 9, 2020
    Assignees: TAMURA TECO CO., LTD., KINKI UNIVERSITY
    Inventors: Kozo Tamura, Yoshiyuki Fukuda, Shunji Ishiwata, Atsushi Taga
  • Patent number: 10649371
    Abstract: The developing device includes a developer bearer, a conveyor, a casing including a ceiling, and a seal. The developer bearer is configured to bear a developer and develop a latent image. The conveyor is configured to convey and stir the developer. The casing is configured to contain the developer, the developer bearer, and the conveyor. The seal is configured to seal the inside of the casing to form a closed space that encloses the developer in the developing device. The conveyor is configured to be partially or entirely buried in the developer enclosed in the closed space in both of a normal posture and an upside-down posture of the developing device. A cross-sectional area of the closed space in a horizontal plane gradually increases from a top of the ceiling of the casing toward a bottom of the developing device in the normal posture of the developing device.
    Type: Grant
    Filed: March 11, 2019
    Date of Patent: May 12, 2020
    Assignee: Ricoh Company, Ltd.
    Inventors: Kei Saito, Yoshiyuki Fukuda, Masaaki Yamada, Yuuji Ishikura
  • Patent number: 10571837
    Abstract: A fixing device includes a fixing rotator that is flexible, endless, and rotatable. A heater heats the fixing rotator. A pressure rotator is disposed opposite the fixing rotator. A nip former defines a fixing nip between the fixing rotator and the pressure rotator. A support supports the nip former. The nip former includes a back face that contacts the support and has a nonlinear shape in a longitudinal direction of the nip former.
    Type: Grant
    Filed: January 4, 2019
    Date of Patent: February 25, 2020
    Assignee: RICOH COMPANY, LTD.
    Inventors: Yoshiki Yamaguchi, Ippei Fujimoto, Hiroyuki Shimada, Takayuki Seki, Takashi Seto, Yoshiyuki Fukuda, Hiroshi Yoshinaga
  • Patent number: 10566264
    Abstract: A flow path member may include silicon nitride ceramics. The flow path member may have an inlet port, an outlet port, and a flow path connected to the inlet port and the outlet port inside the flow path member. A plurality of needle-shaped crystals may be arranged on a surface of the flow path where the needle-shaped crystals intersect each other.
    Type: Grant
    Filed: December 16, 2016
    Date of Patent: February 18, 2020
    Assignees: KYOCERA CORPORATION, TOSHIBA MATERIALS CO., LTD.
    Inventors: Yuusaku Ishimine, Takeshi Muneishi, Kazuhiko Fujio, Yoshiyuki Fukuda, Kentaro Takanami, Takao Shirai
  • Publication number: 20190286025
    Abstract: A fixing device includes a fixing rotator that is flexible, endless, and rotatable. A heater heats the fixing rotator. A pressure rotator is disposed opposite the fixing rotator. A nip former defines a fixing nip between the fixing rotator and the pressure rotator. A support supports the nip former. The nip former includes a back face that contacts the support and has a nonlinear shape in a longitudinal direction of the nip former.
    Type: Application
    Filed: January 4, 2019
    Publication date: September 19, 2019
    Applicant: Ricoh Company, Ltd.
    Inventors: Yoshiki YAMAGUCHI, lppei FUJIMOTO, Hiroyuki SHIMADA, Takayuki SEKI, Takashi SETO, Yoshiyuki FUKUDA, Hiroshi YOSHINAGA
  • Publication number: 20190286013
    Abstract: The developing device includes a developer bearer, a conveyor, a casing including a ceiling, and a seal. The developer bearer is configured to bear a developer and develop a latent image. The conveyor is configured to convey and stir the developer. The casing is configured to contain the developer, the developer bearer, and the conveyor. The seal is configured to seal the inside of the casing to form a closed space that encloses the developer in the developing device. The conveyor is configured to be partially or entirely buried in the developer enclosed in the closed space in both of a normal posture and an upside-down posture of the developing device. A cross-sectional area of the closed space in a horizontal plane gradually increases from a top of the ceiling of the casing toward a bottom of the developing device in the normal posture of the developing device.
    Type: Application
    Filed: March 11, 2019
    Publication date: September 19, 2019
    Applicant: Ricoh Company, Ltd.
    Inventors: Kei Saito, Yoshiyuki Fukuda, Masaaki Yamada, Yuuji Ishikura
  • Publication number: 20180374778
    Abstract: A flow path member may include silicon nitride ceramics. The flow path member may have an inlet port, an outlet port, and a flow path connected to the inlet port and the outlet port inside the flow path member. A plurality of needle-shaped crystals may be arranged on a surface of the flow path where the needle-shaped crystals intersect each other.
    Type: Application
    Filed: December 16, 2016
    Publication date: December 27, 2018
    Inventors: Yuusaku ISHIMINE, Takeshi MUNEISHI, Kazuhiko FUJIO, Yoshiyuki FUKUDA, Kentaro TAKANAMI, Takao SHIRAI
  • Publication number: 20180200554
    Abstract: A CT value controller includes a storage means, an input means, and a computing means. The storage means stores a function expressing a relative humidity and a CT value regarding a degradation degree of an anticancer agent, an assumed relative humidity, and a CT setting. The input means inputs a measured relative humidity and a measured ozone concentration at a time of degradation treatment of the anticancer agent. The computing means calculates a corrected CT value increment based on a difference between the measured relative humidity and the assumed relative humidity at every input of the relative humidity and the ozone concentration by using the function. The computing means determines a termination of the degradation treatment of the anticancer agent when an integrated CT value of the corrected CT value increments reaches the CT setting.
    Type: Application
    Filed: March 14, 2018
    Publication date: July 19, 2018
    Applicants: TAMURA TECO CO., LTD., KINKI UNIVERSITY
    Inventors: Kozo TAMURA, Yoshiyuki FUKUDA, Shunji ISHIWATA, Atsushi TAGA
  • Patent number: 10004932
    Abstract: There are provided an anticancer agent degradation method for protecting medical professionals from exposure to an anticancer agent externally scattered in, for example, a safety cabinet or prescription laboratory, during drug preparation or other circumstance, and an anticancer agent degradation apparatus for use with this anticancer agent degradation method. Anticancer agent flyoff in a safety cabinet, etc. is degraded by exploiting an action of ozone-containing air humidified by humidifying means. A relative humidity of humidified ozone-containing air is preferably greater than or equal to 80%. In controlling degradation treatment on the basis of CT values, a difference between expected humidity and measured humidity is reflected in an increment of CT value to understand the progress of anticancer agent degradation properly.
    Type: Grant
    Filed: June 18, 2014
    Date of Patent: June 26, 2018
    Assignees: TAMURA TECO CO., LTD., KINKI UNIVERSITY
    Inventors: Kozo Tamura, Yoshiyuki Fukuda, Shunji Ishiwata, Atsushi Taga
  • Patent number: 9772579
    Abstract: A developing device includes a developer bearer disposed facing a latent image bearer in a developing range to transport developer by rotation, a support to support the developer bearer and including a holder mount, a rod-shaped developer regulator disposed facing a surface of the developer bearer across a gap, and a holder secured to the holder mount of the support to hold the rod-shaped developer regulator. The rod-shaped developer regulator extends in an axial direction of the developer bearer.
    Type: Grant
    Filed: December 30, 2016
    Date of Patent: September 26, 2017
    Assignee: Ricoh Company, Ltd.
    Inventors: Yuki Oshikawa, Akira Azami, Yoshiko Ogawa, Masaaki Yamada, Yoshihiro Fujiwara, Noriyuki Kimura, Yoshiharu Kishi, Yasunobu Shimizu, Junichi Matsumoto, Yoshiyuki Fukuda, Yuuji Ishikura, Kei Saito
  • Publication number: 20170108795
    Abstract: A developing device includes a developer bearer disposed facing a latent image hearer in a developing range to transport developer by rotation, a support to support the developer bearer and including a holder mount, a rod-shaped developer regulator disposed facing a surface of the developer bearer across a gap, and a holder secured to the holder mount of the support to hold the rod-shaped developer regulator. The rod-shaped developer regulator extends in an axial direction of the developer bearer.
    Type: Application
    Filed: December 30, 2016
    Publication date: April 20, 2017
    Inventors: Yuki OSHIKAWA, Akira Azami, Yoshiko Ogawa, Masaaki Yamada, Yoshihiro Fujiwara, Noriyuki Kimura, Yoshiharu Kishi, Yasunobu Shimizu, Junichi Matsumoto, Yoshiyuki Fukuda, Yuuji Ishikura, Kei Saito
  • Patent number: 9625851
    Abstract: A developing device includes a developer bearer disposed facing a latent image bearer in a developing range to transport developer by rotation, a support to support the developer bearer and including a holder mount, a rod-shaped developer regulator disposed facing a surface of the developer bearer across a gap, and a holder secured to the holder mount of the support to hold the rod-shaped developer regulator. The rod-shaped developer regulator extends in an axial direction of the developer bearer.
    Type: Grant
    Filed: February 1, 2016
    Date of Patent: April 18, 2017
    Assignee: Ricoh Company, Ltd.
    Inventors: Yuki Oshikawa, Akira Azami, Yoshiko Ogawa, Masaaki Yamada, Yoshihiro Fujiwara, Noriyuki Kimura, Yoshiharu Kishi, Yasunobu Shimizu, Junichi Matsumoto, Yoshiyuki Fukuda, Yuuji Ishikura, Kei Saito
  • Publication number: 20160238966
    Abstract: A developing device includes a developer bearer disposed facing a latent image bearer in a developing range to transport developer by rotation, a support to support the developer bearer and including a holder mount, a rod-shaped developer regulator disposed facing a surface of the developer bearer across a gap, and a holder secured to the holder mount of the support to hold the rod-shaped developer regulator. The rod-shaped developer regulator extends in an axial direction of the developer bearer.
    Type: Application
    Filed: February 1, 2016
    Publication date: August 18, 2016
    Inventors: Yuki OSHIKAWA, Akira AZAMI, Yoshiko OGAWA, Masaaki YAMADA, Yoshihiro FUJIWARA, Noriyuki KIMURA, Yoshiharu KISHI, Yasunobu SHIMIZU, Junichi MATSUMOTO, Yoshiyuki FUKUDA, Yuuji ISHIKURA, Kei SAITO
  • Publication number: 20160121152
    Abstract: There are provided an anticancer agent degradation method for protecting medical professionals from exposure to an anticancer agent externally scattered in, for example, a safety cabinet or prescription laboratory, during drug preparation or other circumstance, and an anticancer agent degradation apparatus for use with this anticancer agent degradation method. Anticancer agent flyoff in a safety cabinet, etc. is degraded by exploiting an action of ozone-containing air humidified by humidifying means. A relative humidity of humidified ozone-containing air is preferably greater than or equal to 80%. In controlling degradation treatment on the basis of CT values, a difference between expected humidity and measured humidity is reflected in an increment of CT value to understand the progress of anticancer agent degradation properly.
    Type: Application
    Filed: June 18, 2014
    Publication date: May 5, 2016
    Applicants: TAMURA TECO CO., LTD., KINKI UNIVERSITY
    Inventors: Kozo Tamura, Yoshiyuki Fukuda, Shunji Ishiwata, Atsushi Taga
  • Patent number: 9316950
    Abstract: A development device is operable in multiple different speed modes and includes a developer bearer to carry developer, a developer regulator to adjust an amount of developer carried on the developer bearer, and multiple developer conveyance members disposed facing the developer bearer to transport developer in a longitudinal direction to circulate developer inside the development device. The multiple developer conveyance members including a first developer conveyance member to supply developer to the developer bearer and a second developer conveyance member to transport developer collected from the developer bearer. The development device executes developer amount balance adjustment in which a driving velocity of at least the multiple developer conveyance members is increased from a driving velocity in a lower-speed mode for a predetermined period after image development in the lower speed mode is completed and before image development in a higher speed mode is started.
    Type: Grant
    Filed: April 4, 2013
    Date of Patent: April 19, 2016
    Assignee: Ricoh Company, Ltd.
    Inventors: Tomoko Takahashi, Yoshiyuki Fukuda, Yoshio Hattori, Sho Akiyama, Takamasa Ozeki, Yoshinori Nakagawa, Mikio Ishibashi, Ryuji Yoshida, Taichi Urayama
  • Patent number: 9310715
    Abstract: A developing device includes a developer bearer, a development casing in which a developer conveyance channel is formed facing the developer bearer through a communicating area, a developer supply member disposed in the developer conveyance channel, a developer regulator disposed facing a lower portion of the developer bearer to adjust an amount of developer carried on the developer bearer, and a sheet member that is removably installed to seal the communicating area and passes through a gap between the developer regulator and the developer bearer and an opening formed in the development casing. A first end of the sheet member is retained downstream from the gap in a direction of rotation of the developer bearer, and the sheet member is fixed to the development casing at a position across the communicating area from the first end with a second end positioned outside the development casing.
    Type: Grant
    Filed: December 13, 2013
    Date of Patent: April 12, 2016
    Assignee: Ricoh Company, Ltd.
    Inventors: Yoshio Hattori, Yoshiyuki Fukuda, Sho Akiyama, Yuki Oshikawa, Noriyuki Kimura
  • Publication number: 20160041494
    Abstract: A development device is operable in multiple different speed modes and includes a developer bearer to carry developer, a developer regulator to adjust an amount of developer carried on the developer bearer, and multiple developer conveyance members disposed facing the developer bearer to transport developer in a longitudinal direction to circulate developer inside the development device. The multiple developer conveyance members including a first developer conveyance member to supply developer to the developer bearer and a second developer conveyance member to transport developer collected from the developer bearer. The development device executes developer amount balance adjustment in which a driving velocity of at least the multiple developer conveyance members is increased from a driving velocity in a lower-speed mode for a predetermined period after image development in the lower speed mode is completed and before image development in a higher speed mode is started.
    Type: Application
    Filed: April 4, 2013
    Publication date: February 11, 2016
    Applicant: RICOH COMPANY, LTD.
    Inventors: Tomoko TAKAHASHI, Yoshiyuki FUKUDA, Yoshio HATTORI, Sho AKIYAMA, Takamasa OZEKI, Yoshinori NAKAGAWA, Mikio ISHIBASHI, Ryuji YOSHIDA, Taichi URAYAMA
  • Patent number: 9141034
    Abstract: A developing device includes a developer bearer, a magnetic field generator provided inside the developer bearer, a casing including an opening to partly expose a surface of the developer bearer, and a lateral end cover to cover an axial end portion of the exposed surface of the developer bearer. The lateral end cover includes a wide portion extending more to an axial inner side of the developer bearer than a downstream portion of the lateral end cover positioned downstream from the wide portion in a direction of rotation of the developer bearer. A downstream end of the wide portion is downstream from an upstream end of the development range in the direction of rotation of the developer bearer.
    Type: Grant
    Filed: May 29, 2014
    Date of Patent: September 22, 2015
    Assignee: Ricoh Company, Ltd.
    Inventors: Yoshiyuki Fukuda, Yoshio Hattori, Sho Akiyama, Noriyuki Kimura
  • Patent number: 9095051
    Abstract: According to one embodiment, a ceramic substrate for mounting a device is provided. The ceramic substrate includes a through-hole and a recessed portion provided on at least one edge surface thereof.
    Type: Grant
    Filed: January 4, 2012
    Date of Patent: July 28, 2015
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Yoshiyuki Fukuda, Hiromasa Kato
  • Patent number: 8989621
    Abstract: A development device includes a development casing for containing two-component developer, a developer bearer, a developer regulator to adjust an amount of developer carried on the developer bearer, a first developer conveyance member to supply developer to the developer bearer, a second developer conveyance member to transport axially developer separated from the developer bearer, first and second conveyance channels divided by a partition, in which the first and second developer conveyance members are respectively provided, and a removable sheet member to cover the developer bearer in an area facing the developer regulator, the first and second conveyance channels, and the partition. A first end portion of the sheet member extends from the second conveyance channel outside the development casing through a through hole formed in the development casing, and a second end portion thereof is retained by a retainer at a position outside the developer regulator.
    Type: Grant
    Filed: July 23, 2012
    Date of Patent: March 24, 2015
    Assignee: Ricoh Company, Ltd.
    Inventors: Yoshio Hattori, Toshio Koike, Hiroaki Okamoto, Atsushi Nakamoto, Yoshiyuki Fukuda