Patents by Inventor Takahiro Sanada

Takahiro Sanada 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: 11968466
    Abstract: A solid-state imaging device, a method for driving a solid-state imaging device, and an electronic apparatus are provided that are capable of reducing memory circuits of a column reading system, so that the column reading system can achieve a reduced layout area and eventually a reduced size. A column reading circuit includes an AD converting part and a calculating part. The AD converting part is configured to analog-to-digital convert a read-out reset signal and a read-out signal of a pixel signal read to a vertical signal line into an n-bit digital pixel signal. The calculating part includes an n-bit asynchronous counter including a retention circuit with a control logic function, which is configured to obtain a difference between an n-bit read-out reset signal and an n-bit read-out signal produced by the AD conversion performed by the AD converting part.
    Type: Grant
    Filed: August 4, 2022
    Date of Patent: April 23, 2024
    Assignee: BRILLNICS SINGAPORE PTE. LTD.
    Inventors: Naoyuki Abe, Keita Murase, Takahiro Matsuzawa, Shinichiro Matsuo, Shingo Sanada
  • Patent number: 11491219
    Abstract: The present invention relates to a hepatitis B vaccine composition for spray-administration to nasal mucosa for preventing and treating hepatitis B, which comprises hepatitis B antigen and carboxy vinyl polymer.
    Type: Grant
    Filed: October 4, 2018
    Date of Patent: November 8, 2022
    Assignees: TOKYO YAKUHIN KOGYO CO., LTD., TOKYO METROPOLITAN INSTITUTE OF MEDICAL SCIENCE, JAPAN as represented by DIRECTOR GENERAL of National Institute of Infectious Diseases, KAGOSHIMA UNIVERSITY, NATIONAL UNIVERSITY CORPORATION EHIME UNIVERSITY
    Inventors: Taizou Kamishita, Takashi Miyazaki, Michinori Kohara, Takahiro Sanada, Yoichi Hiasa, Osamu Yoshida, Kyoko Kohara, Hideki Hasegawa
  • Publication number: 20220016155
    Abstract: The present invention provides a pharmaceutical composition for treating hepatitis B. The present invention provides a composition for inhibiting the replication of hepatitis B virus and a pharmaceutical composition for treating hepatitis B virus infection, each comprising an inhibitory substance against microRNA binding to the 5? epsilon signal sequence in the pregenomic RNA of hepatitis B virus.
    Type: Application
    Filed: November 16, 2019
    Publication date: January 20, 2022
    Inventors: Tsubasa Munakata, Michinori Kohara, Takahiro Sanada
  • Publication number: 20210228712
    Abstract: A hepatitis B vaccine comprising a surface antigen particle that has only hepatitis B virus L protein or a variant thereof assembling on a lipid membrane to form the particle.
    Type: Application
    Filed: July 13, 2018
    Publication date: July 29, 2021
    Inventors: Michinori Kohara, Takahiro Sanada, Yoichi Hiasa, Kyoko Kohara, Yasumasa Goh, Yasunori Oda
  • Publication number: 20200261568
    Abstract: The present invention relates to a hepatitis B vaccine composition for spray-administration to nasal mucosa for preventing and treating hepatitis B, which comprises hepatitis B antigen and carboxy vinyl polymer.
    Type: Application
    Filed: October 4, 2018
    Publication date: August 20, 2020
    Inventors: Taizou KAMISHITA, Takashi MIYAZAKI, Michinori KOHARA, Takahiro SANADA, Yoichi HIASA, Osamu YOSHIDA, Kyoko KOHARA, Hideki HASEGAWA
  • Patent number: 9392710
    Abstract: A waterproof structure for an electronic unit includes a sub-case that defines an accommodating portion that accommodates a first terminal, and has a cable guiding hole that communicates with the accommodating portion. A potting resin filled in the accommodating portion is also filled in a space between a cable and the cable guiding hole. The cable includes a first sheath that covers a conductor and is made of a first resin material, and a second sheath that covers the first sheath. The second sheath and the potting resin are made of a second resin material that is different from the first resin material.
    Type: Grant
    Filed: August 28, 2015
    Date of Patent: July 12, 2016
    Assignee: JTEKT CORPORATION
    Inventors: Toshio Tamai, Norio Nakatani, Takahiro Sanada, Kensaku Hotta
  • Patent number: 9341980
    Abstract: A process unit includes a latent image bearer, a developer bearer, a regulator, a supplier, and at least one voltage applicator. The latent image bearer bears a latent image on a surface thereof. The developer bearer supplies a developer onto the latent image bearer to make the latent image a visible image. The regulator regulates a thickness of a layer of the developer on the surface of the developer bearer. The supplier supplies the developer to the developer bearer. At least one voltage applicator applies a voltage to the developer bearer and the latent image bearer.
    Type: Grant
    Filed: July 15, 2015
    Date of Patent: May 17, 2016
    Assignee: Ricoh Company, Ltd.
    Inventor: Takahiro Sanada
  • Patent number: 9335663
    Abstract: A seal is provided to contact a rotating body installed in an image forming apparatus. Pencil hardness of the sealing element is about 2H or more and a water drop contact angle thereof is about 90 degrees or more.
    Type: Grant
    Filed: January 5, 2015
    Date of Patent: May 10, 2016
    Assignee: Ricoh Company, Ltd.
    Inventors: Kyoko Abe, Tomohiro Kubota, Takahiro Sanada, Yuji Nagatomo
  • Publication number: 20160018756
    Abstract: A process unit includes a latent image bearer, a developer bearer, a regulator, a supplier, and at least one voltage applicator. The latent image bearer bears a latent image on a surface thereof. The developer bearer supplies a developer onto the latent image bearer to make the latent image a visible image. The regulator regulates a thickness of a layer of the developer on the surface of the developer bearer. The supplier supplies the developer to the developer bearer. At least one voltage applicator applies a voltage to the developer bearer and the latent image bearer.
    Type: Application
    Filed: July 15, 2015
    Publication date: January 21, 2016
    Applicant: RICOH COMPANY, LTD.
    Inventor: Takahiro Sanada
  • Patent number: 9237667
    Abstract: A waterproof structure for an electronic unit includes a sub-case that defines an accommodating portion that accommodates a first terminal, and has a cable guiding hole that communicates with the accommodating portion. A potting resin filled in the accommodating portion is also filled in a space between a cable and the cable guiding hole. The cable includes a first sheath that covers a conductor and is made of a first resin material, and a second sheath that covers the first sheath. The second sheath and the potting resin are made of a second resin material that is different from the first resin material.
    Type: Grant
    Filed: February 25, 2013
    Date of Patent: January 12, 2016
    Assignee: JTEKT CORPORATION
    Inventors: Toshio Tamai, Norio Nakatani, Takahiro Sanada, Kensaku Hotta
  • Publication number: 20150372466
    Abstract: A waterproof structure for an electronic unit includes a sub-case that defines an accommodating portion that accommodates a first terminal, and has a cable guiding hole that communicates with the accommodating portion. A potting resin filled in the accommodating portion is also filled in a space between a cable and the cable guiding hole. The cable includes a first sheath that covers a conductor and is made of a first resin material, and a second sheath that covers the first sheath. The second sheath and the potting resin are made of a second resin material that is different from the first resin material.
    Type: Application
    Filed: August 28, 2015
    Publication date: December 24, 2015
    Inventors: Toshio TAMAI, Norio NAKATANI, Takahiro SANADA, Kensaku HOTTA
  • Patent number: 9164435
    Abstract: A fixing device includes a nip formation pad disposed opposite an inner circumferential surface of an endless belt and a pressing rotary body pressed against the nip formation pad via the endless belt to form a fixing nip between the endless belt and the pressing rotary body, through which a recording medium is conveyed. The pressing rotary body has a diameter increasing from a center to each lateral end in an axial direction thereof. The nip formation pad includes a projection disposed downstream from a rotation axis of the pressing rotary body in a recording medium conveyance direction. The projection projects toward the pressing rotary body in an amount increasing from each lateral end to a center in a longitudinal direction of the nip formation pad parallel to the axial direction of the pressing rotary body.
    Type: Grant
    Filed: November 19, 2013
    Date of Patent: October 20, 2015
    Assignee: Ricoh Company, Ltd.
    Inventors: Tomoya Adachi, Atsushi Takehara, Tomohiko Fujii, Yutaka Naitoh, Minoru Toyoda, Hitoshi Fujiwara, Yasuharu Kawarasaki, Naoki Nakatake, Keiji Kunimi, Takahiro Sanada, Yasuhide Matsuno, Rumi Miyazaki, Kyoko Abe, Takeshi Yamashita, Yasuhiro Fujiwara
  • Patent number: 9116460
    Abstract: An image forming apparatus includes a latent image forming device that forms a latent image, a latent image carrier that carries the latent image, a development device that develops the latent image, and a controller. The development device includes a developer carrier that faces the latent image carrier and carries toner on a rotary surface thereof that rotates in a rotation direction perpendicular to a width direction of the developer carrier, and a regulation member that regulates the thickness of a layer of the toner on the surface of the developer carrier. The controller moves the toner on lateral end regions in the width direction of the surface of the developer carrier toward the latent image carrier. The end regions are located outside a maximum image forming region within a regulation member facing region of the surface of the developer carrier facing the regulation member.
    Type: Grant
    Filed: November 27, 2013
    Date of Patent: August 25, 2015
    Assignee: Ricoh Company, Ltd.
    Inventors: Yasuhide Matsuno, Naoki Nakatake, Yuji Nagatomo, Takahiro Sanada
  • Publication number: 20150192882
    Abstract: A seal is provided to contact a rotating body installed in an image forming apparatus. Pencil hardness of the sealing element is about 2H or more and a water drop contact angle thereof is about 90 degrees or more.
    Type: Application
    Filed: January 5, 2015
    Publication date: July 9, 2015
    Applicant: Ricoh Company, Ltd.
    Inventors: Kyoko Abe, Tomohiro Kubota, Takahiro Sanada, Yuji Nagatomo
  • Patent number: 9014593
    Abstract: A sealing assembly to contact a rotator includes a sealing member to slidably contact a surface of an end of the rotator in an axial direction of the rotator. The sealing member has an end in a circumferential direction thereof to contact the surface of the rotator with a first pressure. The end in the circumferential direction is fixed to a bearing surface formed on the opening on at least one of an upstream side and a downstream side in a rotation direction of the rotator. The sealing member has an intermediate portion between an upstream end and a downstream end in the circumferential direction to contact the surface of the rotator with a second pressure lower than the first pressure.
    Type: Grant
    Filed: November 20, 2013
    Date of Patent: April 21, 2015
    Assignee: Ricoh Company, Ltd.
    Inventors: Yasunobu Ogata, Tetsumaru Fujita, Rie Mitani, Takahiro Sanada
  • Patent number: 8983323
    Abstract: Provided is a color image forming apparatus that includes: image carriers that form toner image of black and other colors; an intermediate transfer body that makes contact with the image carriers; and transfer units that transfer the toner images on the image carriers to the intermediate transfer body. A line velocity difference is set between the image carriers and the intermediate transfer body. An accelerated cohesion degree of toner is equal to or larger than 54%. A linear velocity difference X1 between the image carrier for black and the intermediate transfer body satisfies a relation of 0<X1?1.2 mm/sec. A linear velocity difference X2 between the image carriers for the colors and the intermediate transfer body satisfies a relation of 2.1?X2?4.0 mm/sec.
    Type: Grant
    Filed: January 25, 2013
    Date of Patent: March 17, 2015
    Assignee: Ricoh Company, Limited
    Inventors: Takeshi Yamashita, Yuji Nagatomo, Naoki Nakatake, Yasuhiro Fujiwara, Takafumi Miyazaki, Yasuhide Matsuno, Takahiro Sanada, Rumi Miyazaki, Kyoko Abe, Tomoya Adachi, Yoshie Iwakura
  • Patent number: 8971743
    Abstract: An image forming apparatus including a latent image bearing member, a charger, a latent image forming device, a developing device, and a transfer device is provided. The transfer device is adapted to transfer a toner image formed on the latent image bearing member onto an intermediate transfer member or a recording medium by action of a transfer elected field in a transfer position where the latent image bearing member faces the transfer device. When a non-charged portion of the latent image bearing member that has not been charged to a predetermined potential by the charger passes through the transfer position, a strength of the transfer electric field is lowered than that in transferring the toner image.
    Type: Grant
    Filed: March 25, 2013
    Date of Patent: March 3, 2015
    Assignee: Ricoh Company, Ltd.
    Inventors: Takafumi Miyazaki, Naoki Nakatake, Yuji Nagatomo, Yasuhide Matsuno, Takahiro Sanada, Yasuhiro Fujiwara, Kyoko Abe, Takeshi Yamashita, Tomoya Adachi
  • Patent number: 8872025
    Abstract: A waterproof structure of an electronic unit includes a case that defines a housing portion housing a first terminal, and a connector that includes an insulating body attached to the case. The connector includes a second terminal that is supported by the insulating body and connects a conductor end portion of a cable to the first terminal. The insulating body includes a wall portion that partitions a part of the housing portion by covering an open portion of the case. The insulating body includes a cable lead-in portion that defines a cable lead-in hole for leading the cable into the case and is joined to the wall portion. A potting resin is filled in a space between the inner periphery of the cable lead-in hole and the outer periphery of the cable and the housing portion and cured.
    Type: Grant
    Filed: March 13, 2012
    Date of Patent: October 28, 2014
    Assignee: Jtekt Corporation
    Inventors: Toshio Tamai, Takahiro Sanada
  • Patent number: 8805222
    Abstract: An image developing device includes a developer supporting body; a first conveyance path in which a first conveyance member is arranged; a second conveyance path in which a second conveyance member is arranged; and a partition member that partitions the first conveyance path and the second conveyance path and that has a first communication port and a second communication port. The first communication path and the second communication path communicates with each other through the first communication port and the second communication port. The image developing device includes a developer amount detection unit that includes an optical detection unit arranged in the second conveyance path and that optically detects an amount of the developer in the image forming device. The developer is caused to accumulate in the vicinity of the developer amount detection unit.
    Type: Grant
    Filed: March 5, 2012
    Date of Patent: August 12, 2014
    Assignee: Ricoh Company, Ltd.
    Inventors: Naoki Nakatake, Tomohiro Kubota, Shoh Tsuritani, Yuji Nagatomo, Yasuhide Matsuno, Hiroaki Katoh, Tomoya Adachi, Rumi Miyazaki, Takafumi Miyazaki, Takeshi Yamashita, Kyoko Abe, Yasuhiro Fujiwara, Takahiro Sanada
  • Publication number: 20140161471
    Abstract: An image forming apparatus includes a latent image forming device that forms a latent image, a latent image carrier that carries the latent image, a development device that develops the latent image, and a controller. The development device includes a developer carrier that faces the latent image carrier and carries toner on a rotary surface thereof that rotates in a rotation direction perpendicular to a width direction of the developer carrier, and a regulation member that regulates the thickness of a layer of the toner on the surface of the developer carrier. The controller moves the toner on lateral end regions in the width direction of the surface of the developer carrier toward the latent image carrier. The end regions are located outside a maximum image forming region within a regulation member facing region of the surface of the developer carrier facing the regulation member.
    Type: Application
    Filed: November 27, 2013
    Publication date: June 12, 2014
    Applicant: Ricoh Company, Ltd
    Inventors: Yasuhide Matsuno, Naoki Nakatake, Yuji Nagatomo, Takahiro Sanada