Patents by Inventor Takeshi Ishida

Takeshi Ishida 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: 11054695
    Abstract: A chip-mounted board including: micro light-emitting chips arranged in a matrix pattern in a light-emitting region; and a conductive line electrically connected to the micro light-emitting chips, the light-emitting region including a first region having a first luminance, a second region having a second luminance lower than the first luminance, and a third region having a third luminance lower than the first luminance and higher than the second luminance, the luminances being values determined with the same magnitude of current supplied to the micro light-emitting chips, the third region being positioned between the first region and the second region and satisfying the following formulas (1) and (2): (1+k)/(1?k)?63.895×tan(0.5°)×500/W+6.0525??(1) L2=k×L1??(2) wherein L1 represents the first luminance, L2 represents the second luminance, and W represents a width (unit: mm) of the third region.
    Type: Grant
    Filed: July 10, 2019
    Date of Patent: July 6, 2021
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Taimi Oketani, Atsushi Ban, Yasuhisa Itoh, Takeshi Ishida
  • Patent number: 11003018
    Abstract: Provided is a backlight unit (2) including a light source (4) where multiple light-emitting elements (8) are two-dimensionally laid out, and a wavelength converting member (6) that has a phosphor (12), and that converts a wavelength of light from the light source, where a wavelength conversion capability varies in accordance with a distance to a light-emitting element that is closest of the multiple light-emitting elements, in order to reduce color unevenness that occurs depending on difference in distance between the light source and wavelength converting member of the backlight unit.
    Type: Grant
    Filed: May 10, 2018
    Date of Patent: May 11, 2021
    Assignee: SHARP KABUSHIKI KAISHA
    Inventor: Takeshi Ishida
  • Publication number: 20210061601
    Abstract: A conveyor conveys a sheet along a conveyance path provided with an ultrasonic sensor, and includes: an updating member that successively updates a parameter indicating aged deterioration of the conveyor; a searcher that searches a look-up table storing pieces of noise data of noises predicted to be superimposed on a detection signal of the ultrasonic sensor in accordance with a degree of the aged deterioration, and obtains a piece of noise data corresponding to a current parameter value of the conveyor; and a signal processor that uses, for signal processing, a remaining portion of the detection signal of the ultrasonic sensor excluding a portion corresponding to the piece of noise data obtained by the searcher.
    Type: Application
    Filed: September 2, 2020
    Publication date: March 4, 2021
    Inventors: Toshikazu HIGASHI, Tatsuya EGUCHI, Takashi WATANABE, Shigetaka KATO, Takeshi ISHIDA
  • Publication number: 20210061602
    Abstract: A controller causes a sensor unit to perform: a first operation for detecting a front end of a sheet; and a second operation for detecting a type of the sheet performed at a timing that is based on detection of the front end of the sheet in the first operation.
    Type: Application
    Filed: August 26, 2020
    Publication date: March 4, 2021
    Inventors: Takashi WATANABE, Takeshi ISHIDA, Tatsuya EGUCHI, Toshikazu HIGASHI, Shigetaka KATO, Akinori KIMATA
  • Patent number: 10928578
    Abstract: First and second prism sheets have pluralities of first and second unit prisms, respectively, arranged along a first direction and extending along a second direction, each of which has a base that is parallel to the first direction and a pair of oblique sides standing from both ends, respectively, of the base, and an angle that a second LED facing oblique side, which is one of the oblique sides that faces toward the LED, forms with respect to the base in the first direction in the second unit prism is smaller than an angle that a first LED facing oblique side that faces toward the LED forms with respect to the base in the first direction in the first unit prism.
    Type: Grant
    Filed: January 20, 2020
    Date of Patent: February 23, 2021
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Shugo Yagi, Takeshi Ishida, Yuuichi Kanbayashi, Satoshi Tsubooka
  • Publication number: 20200378994
    Abstract: The object of the invention is to provide an automatic analysis apparatus which is capable of both sterilizing a reagent and suppressing property variations in the reagent. Provided is an automatic analysis apparatus including a reagent vessel which holds a reagent; a suction nozzle which sucks the reagent; an analysis unit which executes an analysis operation by adding a reagent sucked from the reagent vessel to a specimen via the suction nozzle; an ultraviolet ray source which sterilizes a reagent by ultraviolet irradiation; and an electrode or a substrate which supplies electric power to the ultraviolet ray source, in which a heat insulation portion is arranged between a reagent in the suction nozzle and the ultraviolet ray source and the electrode or the substrate, or, it is isolated between a reagent in the suction nozzle and the ultraviolet ray source and the electrode or the substrate.
    Type: Application
    Filed: October 31, 2018
    Publication date: December 3, 2020
    Inventors: Takeshi ISHIDA, Yoshihiro YAMASHITA, Hisashi YABUTANI, Koshin HAMASAKI
  • Patent number: 10802203
    Abstract: A lighting device includes a light source having a light exit surface, an optical member covering the light exit surface and applying an optical action to light exiting the light source, and a prism sheet coveting the optical member from an opposite side from the light source, and the prism sheet includes prism portions and a light reflecting portion that covers a part of a surface of the prism portions opposite from the optical member.
    Type: Grant
    Filed: January 15, 2019
    Date of Patent: October 13, 2020
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Takeshi Masuda, Takeshi Ishida
  • Publication number: 20200296242
    Abstract: A sheet conveyance device including: a conveyance roller that conveys a sheet; a motor that rotationally drives the conveyance roller at a constant speed; a central processing unit (CPU) that: periodically acquires temperature increase rates for the motor from a start of sheet conveyance, the temperature increase rates depending on magnitudes of effective current applied to the motor, the effective current depending on loads during sheet conveyance; and estimates a current temperature of the motor based on a cumulative value calculated from the temperature increase rates and time elapsed from the start of sheet conveyance; and a controller that executes a motor temperature control based on the estimated temperature of the motor.
    Type: Application
    Filed: March 12, 2020
    Publication date: September 17, 2020
    Inventors: Akinori KIMATA, Tatsuya EGUCHI, Takeshi ISHIDA, Takashi WATANABE
  • Publication number: 20200233146
    Abstract: A lighting device includes a light source, a light guide plate including an edge surface as a light entering surface through which light from the light source enters and one of a pair of plate surfaces as a light exit surface through which the light exits, and a light collecting sheet disposed to cover the light exit surface and applying a light collecting effect to the light exiting through the light exit surface. The light collecting sheet includes a base member having a sheet shape and a non-birefringence property and a light collecting layer disposed on a plate surface of the base member.
    Type: Application
    Filed: January 20, 2020
    Publication date: July 23, 2020
    Inventors: SHUGO YAGI, TAKESHI ISHIDA, YUUICHI KANBAYASHI, SATOSHI TSUBOOKA
  • Publication number: 20200233145
    Abstract: First and second prism sheets have pluralities of first and second unit prisms, respectively, arranged along a first direction and extending along a second direction, each of which has a base that is parallel to the first direction and a pair of oblique sides standing from both ends, respectively, of the base, and an angle that a second LED facing oblique side, which is one of the oblique sides that faces toward the LED, forms with respect to the base in the first direction in the second unit prism is smaller than an angle that a first LED facing oblique side that faces toward the LED forms with respect to the base in the first direction in the first unit prism.
    Type: Application
    Filed: January 20, 2020
    Publication date: July 23, 2020
    Inventors: SHUGO YAGI, TAKESHI ISHIDA, YUUICHI KANBAYASHI, SATOSHI TSUBOOKA
  • Publication number: 20200209682
    Abstract: Provided is a backlight unit (2) including a light source (4) where multiple light-emitting elements (8) are two-dimensionally laid out, and a wavelength converting member (6) that has a phosphor (12), and that converts a wavelength of light from the light source, where a wavelength conversion capability varies in accordance with a distance to a light-emitting element that is closest of the multiple light-emitting elements, in order to reduce color unevenness that occurs depending on difference in distance between the light source and wavelength converting member of the backlight unit.
    Type: Application
    Filed: May 10, 2018
    Publication date: July 2, 2020
    Inventor: TAKESHI ISHIDA
  • Publication number: 20200171182
    Abstract: An analyzer that has a simple configuration, that is inexpensive, that can improve safety, and that can inhibit proliferation of microorganisms using ultraviolet light is realized. A first electric power switch, a second electric power switch, and a third electric power switch are connected in series between an ultraviolet LED that irradiates an interior of a shared reagent storage container with ultraviolet light and a power supply that supplies electric power to the ultraviolet LED. The first electric power switch, the second electric power switch, and the third electric power switch are configured with two contact points and a connection section that connects and disconnects the two contact points. The first electric power switch is opened when a reagent storage door is opened, and the second electric power switch is opened in response to an action of extracting an ultraviolet irradiation section from a shared reagent storage container.
    Type: Application
    Filed: September 10, 2018
    Publication date: June 4, 2020
    Inventors: Hisashi YABUTANI, Takeshi ISHIDA, Yoshihiro YAMASHITA, Taku SAKAZUME, Michaela WINDFUHR, Bernhard HAUPTMANN, Andreas FINKE
  • Publication number: 20200148498
    Abstract: A stapling apparatus includes a sheet insertion portion that receives insertion of a sheet bundle, a stapler that staples the sheet bundle, a drive apparatus that drives the stapler, and a controller that controls the drive apparatus. The controller has the drive apparatus driven with first electric power when the drive apparatus operates in an on-line stapling mode in which the sheet bundle ejected from an image forming apparatus is stapled and has the drive apparatus driven with second electric power lower than maximum electric power that can be set as first electric power when the drive apparatus operates in a manual stapling mode in which the sheet bundle inserted through the sheet insertion portion is stapled.
    Type: Application
    Filed: November 13, 2019
    Publication date: May 14, 2020
    Applicant: Konica Minolta, Inc.
    Inventors: Takeshi ISHIDA, Tatsuya EGUCHI, Takashi WATANABE, Masayuki WATANABE, Akinori KIMATA
  • Publication number: 20200136075
    Abstract: With the purpose of providing a light-emitting layer that is suitable for mass production and a light-emitting device having the light-emitting layer, without including a high-temperature process, there is provided a light-emitting device having: a light-emitting layer formed of a photosensitive material, in which quantum dots are dispersed; a first electrode of a lower layer than the light-emitting layer; and a second electrode of a higher layer than the light-emitting layer.
    Type: Application
    Filed: June 15, 2018
    Publication date: April 30, 2020
    Inventors: MASAYUKI KANEHIRO, TAKESHI ISHIDA, YOUHEI NAKANISHI, SHOTA OKAMOTO
  • Publication number: 20200084321
    Abstract: An image processing system includes: a mobile terminal; and a server apparatus, wherein the mobile terminal includes a camera, a display that displays an apparatus image of an image forming apparatus, a microphone that collects sound output from the image forming apparatus, and a first hardware processor that controls the camera, the microphone and the display, the server apparatus includes a second hardware processor that controls the server apparatus, the second hardware processor performs identifying a portion of the image forming apparatus, setting the portion identified as a sound collection target position, and clipping a partial image including the sound collection target position and representing an outline of a part of the image forming apparatus, from a main body image generated in advance as an image representing an outer shape of the image forming apparatus, and the display displays the partial image.
    Type: Application
    Filed: August 7, 2019
    Publication date: March 12, 2020
    Inventors: Shiro UMEDA, Masayuki WATANABE, Takeshi ISHIDA, Akinori KIMATA, Takashi WATANABE, Kouei CHO
  • Publication number: 20200019016
    Abstract: A chip-mounted board including: micro light-emitting chips arranged in a matrix pattern in a light-emitting region; and a conductive line electrically connected to the micro light-emitting chips, the light-emitting region including a first region having a first luminance, a second region having a second luminance lower than the first luminance, and a third region having a third luminance lower than the first luminance and higher than the second luminance, the luminances being values determined with the same magnitude of current supplied to the micro light-emitting chips, the third region being positioned between the first region and the second region and satisfying the following formulas (1) and (2): (1+k)/(1?k)?63.895×tan(0.5°)×500/W+6.0525??(1) L2=k×L1??(2) wherein L1 represents the first luminance, L2 represents the second luminance, and W represents a width (unit: mm) of the third region.
    Type: Application
    Filed: July 10, 2019
    Publication date: January 16, 2020
    Inventors: Taimi Oketani, Atsushi Ban, Yasuhisa Itoh, Takeshi Ishida
  • Patent number: 10534126
    Abstract: A backlight device 12 includes LEDs 15, a light guide plate 17 having a light entering edge surface 17a opposite the LEDs 15 and having plate surfaces one of which is alight exit plate surface 17b, and a light collecting portion 22 including unit light collecting portions 22a that extend in a normal direction of the light entering edge surface 17a on the light exit plate surface 17b and are arranged in a perpendicular direction perpendicular to the normal direction. The light guide plate 17 includes an opposite edge portion 23 that is opposite from an end portion thereof having the light entering edge surface 17a, the opposite edge portion 23 has an edge surface a part of which is a curved edge surface 24 having a curved planar shape and the opposite edge portion 23 has the light exit plate surface 17b a part of which is a light collecting portion non-forming section 25 on which no light collecting portion 22 is formed.
    Type: Grant
    Filed: March 10, 2017
    Date of Patent: January 14, 2020
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Hisashi Watanabe, Hirotoshi Yasunaga, Youzou Kyoukane, Takeshi Ishida
  • Patent number: 10502888
    Abstract: A lighting device includes a light guide plate (14) having a light exit surface (14A) having a substantially circular shape and a light entrance surface (14C) extending along an entire periphery of an outer edge of the light exit surface (14A), an LED (31A) opposite the light entrance surface (14C), and an LED (32A) that is opposite the light entrance surface (14C) and is connected in parallel to the LED (31A) and the LED (32A) is arranged opposite from the LED (31A) with having a center (C1) of the light exit surface (14A) therebetween.
    Type: Grant
    Filed: February 12, 2016
    Date of Patent: December 10, 2019
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Hisashi Watanabe, Ryuzo Yuki, Shinya Kadowaki, Mitsuhiro Murata, Takeshi Ishida, Takeshi Masuda
  • Patent number: 10488808
    Abstract: An image forming apparatus includes: a transferer that transfers a toner image formed on a surface of a photo-conductor onto an image carrier; and an irradiator that irradiates the surface of the photo-conductor before transfer with light such that a potential of an image area where the toner image has been formed and a potential of a non-image area where the toner image has not been formed in the photo-conductor before transfer satisfy formula (1): 0?|Va|?|Vb|?200 [V]??(1) where |Va| represents the potential of the image area after the surface of the photo-conductor before transfer is irradiated with light, and |Vb| represents the potential of the non-image area after the surface of the photo-conductor before transfer is irradiated with light.
    Type: Grant
    Filed: December 28, 2018
    Date of Patent: November 26, 2019
    Assignee: KONICA MINOLTA, INC.
    Inventors: Takeshi Ishida, Kazuhiro Kuramochi, Seisuke Maeda
  • Patent number: 10466402
    Abstract: An illumination device according to the present invention includes: a light source row in which a plurality of light sources are aligned in a row; a light guide plate that includes a plate-shaped main body with an end thereof facing the light source row, a light-receiving portion that is arranged on the end of the main body and into which light from the light sources enters, plate-shaped side extensions that are arranged on the sides of the main body and that extend outwards further than the light-receiving portion, and a light-exiting portion that is arranged on front surfaces of the main body and the side extensions and that allows light that enters via the light-receiving portion to exit; and a supply unit that supplies light to the side extensions.
    Type: Grant
    Filed: May 15, 2015
    Date of Patent: November 5, 2019
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Hirotoshi Yasunaga, Takeshi Ishida, Mitsuhiro Murata, Ryuzo Yuki