Patents by Inventor Koichi Tanigawa

Koichi Tanigawa 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: 11562774
    Abstract: The semiconductor device 1 comprises a processor 2, a memory connected to the processor and a control circuit, and comprises an active operation mode and a standby operation mode. The memory comprises a normal mode and a RS mode lower power consumption than the normal mode. The memory comprises SRAMs 7_0 to 7_5 which includes a mode terminal RS_T supplied with mode instruction signals RS1_0 to RS1_5 specifying the normal mode or the RS mode, respectively. The control circuit supplies the mode instruction signals specifying the normal mode to the mode terminal of the SRAMs 7_0 to 7_2 in transition period which the semiconductor device transitions from the standby operation mode to the active operation mode. And the control circuit supplies the mode instruction signals specifying the normal mode to the mode terminal of the SRAMs 7_3 to 7_5 after transition to the active operation mode.
    Type: Grant
    Filed: April 15, 2021
    Date of Patent: January 24, 2023
    Assignee: RENESAS ELECTRONICS CORPORATION
    Inventors: Koichi Tanigawa, Takayoshi Shiraishi
  • Publication number: 20220335985
    Abstract: The semiconductor device 1 comprises a processor 2, a memory connected to the processor and a control circuit, and comprises an active operation mode and a standby operation mode. The memory comprises a normal mode and a RS mode lower power consumption than the normal mode. The memory comprises SRAMs 7_0 to 7_5 which includes a mode terminal RS_T supplied with mode instruction signals RS1_0 to RS1_5 specifying the normal mode or the RS mode, respectively. The control circuit supplies the mode instruction signals specifying the normal mode to the mode terminal of the SRAMs 7_0 to 7_2 in transition period which the semiconductor device transitions from the standby operation mode to the active operation mode. And the control circuit supplies the mode instruction signals specifying the normal mode to the mode terminal of the SRAMs 7_3 to 7_5 after transition to the active operation mode.
    Type: Application
    Filed: April 15, 2021
    Publication date: October 20, 2022
    Inventors: Koichi TANIGAWA, Takayoshi SHIRAISHI
  • Publication number: 20140192243
    Abstract: An image pickup device with a plurality of pixels, each of the pixels includes: a photoelectric conversion section formed in a semiconductor substrate; and a metallic member formed between the semiconductor substrate and a wiring layer provided in a layer on the semiconductor substrate, a part of the metallic member being configured to serve as a light-shielding member that blocks a part of light to be incident on the photoelectric conversion section.
    Type: Application
    Filed: January 2, 2014
    Publication date: July 10, 2014
    Applicant: Sony Corporation
    Inventors: Tomohiro Iwahori, Yusuke Kikuchi, Koichi Tanigawa
  • Publication number: 20060012539
    Abstract: With a double-sided display module having a main panel and a sub-panel sharing drive signals, the image quality of the main panel is improved. When the display devices uses the same driver IC to drive the main panel and the sub-panel, the contrast is uneven at the border area between a region of the main panel where signal electrodes share drive signals with the sub-panel and a region of the main panel where signals electrodes do not share drive signals. In order to make the contrast unevenness practically invisible to the naked eye, an unshared electrode adjacent to the border between different contrast levels on the main panel is connected to the dummy electrode. The dummy electrode has to be smaller than the total overlap area of one electrode that constitutes a pixel of the sub-panel. In the case where the sub-panel has more than one dummy electrode, the dummy electrodes are gradually made smaller.
    Type: Application
    Filed: July 11, 2005
    Publication date: January 19, 2006
    Inventors: Tsutomu Matsuhira, Hiroaki Hanawa, Koichi Tanigawa, Tadao Konno
  • Publication number: 20040179408
    Abstract: The microcomputer includes a shift resistor (20) setting a potential to bus wirings (11 to 16) in a stop mode, and the shift resistor (20) can retain a setting data by inputting serially a signal for the setting data from an external data input part (60) in synchronization with external clock from an external clock input part (70). The setting data in the shift resistor (20) is supplied to the bus wirings (11 to 16) through buffers (51 to 56) in active state. The buffers (51 to 56) are in the active state when the mode signal indicates “L” (indicating a stop mode).
    Type: Application
    Filed: November 24, 2003
    Publication date: September 16, 2004
    Applicant: Renesas Technology Corp.
    Inventor: Koichi Tanigawa
  • Patent number: 6347211
    Abstract: A fixing apparatus prevents the offset of toner onto a fixing roller, by forming a surface mold release layer made of pure fluororesin material on a core member of the fixing roller and by applying a bias voltage to the fixing roller.
    Type: Grant
    Filed: August 10, 1999
    Date of Patent: February 12, 2002
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hideo Nanataki, Koichi Tanigawa, Yasumasa Ohtsuka, Takayasu Yuminamochi, Akihiko Takeuchi, Hiroto Hasegawa
  • Publication number: 20010016132
    Abstract: A fixing apparatus prevents the offset of toner onto a fixing roller, by forming a surface mold release layer made of pure fluororesin material on a core member of the fixing roller and by applying a bias voltage to the fixing roller.
    Type: Application
    Filed: August 10, 1999
    Publication date: August 23, 2001
    Inventors: HIDEO NANATAKI, KOICHI TANIGAWA, TAKAYASU YUMINAMOCHI, AKIHIKO TAKEUCHI, HIROTO HASEGAWA
  • Patent number: 6031215
    Abstract: In an image heating device for heating a film utilizing electromagnetic induction, a sliding member is provided between the film and a film supporting member, and the film slides relative to the sliding member. It is thereby possible to improve thermal efficiency while preventing wear due to friction between the film and the supporting member.
    Type: Grant
    Filed: March 26, 1997
    Date of Patent: February 29, 2000
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hideo Nanataki, Koichi Tanigawa, Atsuyoshi Abe, Tetsuya Sano
  • Patent number: 6005594
    Abstract: A fixing apparatus prevents the offset of toner onto a fixing roller, by forming a surface mold release layer made of pure fluororesin material on a core member of the fixing roller and by applying a bias voltage to the fixing roller.
    Type: Grant
    Filed: January 23, 1995
    Date of Patent: December 21, 1999
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hideo Nanataki, Koichi Tanigawa, Yasumasa Ohtsuka, Takayasu Yuminamochi, Akihiko Takeuchi, Hiroto Hasegawa
  • Patent number: 5983107
    Abstract: In a mobile radio communication system of a multi-layer cell structure for covering service areas in layers with cells of different sizes, an enquiry originating mobile terminal transmits enquiry information in an enquiry frame to the N-th layer exchange through the N-th layer base station. The exchange discriminates a kind of the enquiry frame at processing, selects at processing, a minimum cell for covering a distribution area or a minimum number of cells which can cover the distribution area from the state of geographical distribution of the enquiry destinations, fills the numbers of the base stations for forming these cells and the numbers of the exchanges for covering these base stations in the enquiry frame, and transmits this enquiry frame to the corresponding exchange. The exchange checks the numbers of the base stations of the enquiry frame and transmits the enquiry frame to the corresponding base stations.
    Type: Grant
    Filed: April 9, 1997
    Date of Patent: November 9, 1999
    Assignee: Hitachi, Ltd.
    Inventors: Masato Hayashi, Mikiya Namura, Tsutomu Kusaki, Koichi Tanigawa
  • Patent number: 5970299
    Abstract: An image heating device includes a movable member including an electroconductive layer; an excitation coil for generating magnetic flux; wherein the magnetic flux generated by the excitation coil generates an eddy current which in turn generates heat in the movable member to heat an image on a recording material; and a magnetic member for guiding the magnetic flux; wherein the magnetic member is elongated in a direction perpendicular to a movement direction of the movable member, and the excitation coil is extended in a longitudinal direction of the magnetic member; wherein the magnetic member including a first magnetic portion adjacent to the movable member, a second magnetic portion, and a third magnetic portion between the first magnetic portion and the second magnetic portion and adjacent to the movable member with the excitation coil therebetween, as seen in the longitudinal direction.
    Type: Grant
    Filed: March 2, 1998
    Date of Patent: October 19, 1999
    Assignee: Canon Kabushiki Kaisha
    Inventors: Tetsuya Sano, Koichi Tanigawa, Hideo Nanataki, Atsuyoshi Abe
  • Patent number: 5940668
    Abstract: An image forming apparatus includes a first image bearing member on which a toner image can be formed; an intermediate transfer member onto which the toner image is transferable from the first image bearing member; wherein the toner image is further transferred onto a second image bearing member therefrom; wherein the intermediate transfer member comprises a conductive layer to which a voltage is applied, a surface layer on the conductive layer, and a volume resistivity of the surface layer is 10.sup.5 -10.sup.11 ohm.cm.
    Type: Grant
    Filed: April 30, 1997
    Date of Patent: August 17, 1999
    Assignee: Canon Kabushiki Kaisha
    Inventors: Koichi Tanigawa, Kimio Nakahata, Akihiko Takeuchi, Hideo Nanataki, Kazuaki Ono
  • Patent number: 5918096
    Abstract: An image transfer apparatus has a transfer charging member for transferring a toner image from an image bearing member to a transfer material, the transfer charging member adapted to contact with a surface of the transfer material conveyed between the image bearing member and the transfer charging member opposite to a surface thereof facing the image bearing member, and a guide member for supporting the transfer charging member and to guide it between the image bearing member and the transfer charging member.
    Type: Grant
    Filed: February 20, 1997
    Date of Patent: June 29, 1999
    Assignee: Canon Kabushiki Kaisha
    Inventors: Tetsuya Sano, Koichi Tanigawa, Hideo Nanataki, Atsuyoshi Abe
  • Patent number: 5850245
    Abstract: An image output control apparatus is constructed by a converter for converting first information to second information, a controller for starting an output preparing operation before the conversion of the first information of one page to the second information, a memory for holding a control value determined during the output preparing operation, a unit for temporarily stopping the output preparing operation, and a unit for restarting the output preparing operation, wherein the output preparing operation to be restarted is executed on the basis of the control value held in the memory.
    Type: Grant
    Filed: December 6, 1995
    Date of Patent: December 15, 1998
    Assignee: Canon Kabushiki Kaisha
    Inventors: Masahiro Goto, Yoji Serizawa, Toshio Miyamoto, Yuko Ohkama, Saturo Izawa, Yozo Hotta, Koichi Tanigawa
  • Patent number: 5732314
    Abstract: An image forming apparatus including an image bearing member for bearing an image thereon, an intermediate transfer member having a base body and an elastic member provided outside the base body and onto which an image is transferrable from the image bearing member, and a second transfer member forming a nip portion between the second transfer member and the intermediate transfer member, for transferring an image from the intermediate transfer member to a transfer material in the nip portion. The hardness of the surface of the second transfer member is greater than the hardness of the surface of the intermediate transfer member.
    Type: Grant
    Filed: November 23, 1994
    Date of Patent: March 24, 1998
    Assignee: Canon Kabushiki Kaisha
    Inventors: Shinichi Tsukida, Koichi Tanigawa, Masahiro Goto, Toshio Miyamoto, Yuko Ohkama, Satoru Izawa, Yozo Hotta
  • Patent number: 5715498
    Abstract: A color image forming apparatus is provided with a number of image stations respectively corresponding to different color components and adapted to form images of respectively corresponding color components in succession and in superposed manner on a recording medium transported through the a number of image stations. The apparatus has memories for storing image data of respective color components to be supplied to the image stations, detectors for detecting aberration in registration of the images of respective color components formed by the image stations, and a controller for controlling the write-in positions of the image data of respective color components into the memories, based on the output of the detector.
    Type: Grant
    Filed: September 8, 1995
    Date of Patent: February 3, 1998
    Assignee: Canon Kabushiki Kaisha
    Inventors: Akihiko Takeuchi, Koichi Tanigawa, Toshio Miyamoto, Kazuaki Ono
  • Patent number: 5659840
    Abstract: A developing method includes the steps of opposing a developer carrying member to an image bearing member, the developing carrying member carrying a developer to the image bearing member for bearing an electrostatic image, supplying, to the developer carrying member, insulative one component developer having a weight average particle size of 4-8 microns, forming, between the image bearing member and the developer carrying member, an alternating electric field having a back-transfer period, transfer period and rest period, wherein a blank ratio of a sum of (i) the back-transfer period plus (ii) the transfer period and the rest period, during a developing operation, is 5:1-2:1.
    Type: Grant
    Filed: June 28, 1995
    Date of Patent: August 19, 1997
    Assignee: Canon Kabushiki Kaisha
    Inventors: Toshio Miyamoto, Koichi Tanigawa, Masahiro Goto, Yozo Hotta
  • Patent number: 5659857
    Abstract: An image forming method, comprising the steps of forming an electrostatic image on a electrostatic image-bearing member, developing the electrostatic image with toner particles having a first shape factor (SF-1) of 100-150 and containing a low-softening point substance to form a toner image on the electrostatic image-bearing member, transferring the toner image on the electrostatic image-bearing member to an intermediate transfer member which has been voltage-applied, transferring the toner image on the intermediate transfer member to a transfer-receiving material by a transfer means which has been voltage-applied, and heat-fixing the toner image on the transfer-receiving material. The toner particles may preferably have a second shape factor (SF-2) of 100-140. The total of SF-1 and SF-2 may preferably at most 275, particularly at most 240, for improving transfer efficiency of the toner particles. The low-softening point substance may preferably be an ester wax having a long-chain (e.g., .gtoreq.C.sub.
    Type: Grant
    Filed: November 29, 1994
    Date of Patent: August 19, 1997
    Assignee: Canon Kabushiki Kaisha
    Inventors: Masuo Yamazaki, Koichi Tanigawa, Katsuhiko Nishimura
  • Patent number: D618810
    Type: Grant
    Filed: August 29, 2007
    Date of Patent: June 29, 2010
    Assignee: Hisamitsu Pharmaceutical Co., Inc.
    Inventors: Koichi Tanigawa, Hiroyuki Kurematsu
  • Patent number: D686735
    Type: Grant
    Filed: November 24, 2010
    Date of Patent: July 23, 2013
    Assignee: Hisamitsu Pharmaceutical Co., Inc
    Inventors: Mitsutoshi Tsuruta, Kentaro Ishimatsu, Kiyotaka Takada, Koichi Tanigawa, Yukiko Sueyoshi