Patents by Inventor Kunihiko Matsumoto

Kunihiko Matsumoto 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: 11970585
    Abstract: The present invention addresses the problem of reducing the undried residue when recycling a fine powder of water-absorbing resin. The present invention is a method for producing a water-absorbing resin, wherein: a fine powder recycling step includes vi-1) a granulation step for obtaining a granulated gel, vi-2) a granulated gel addition step, and vi-3) a gel mixing step; the solids content of the granulated gel in the granulated gel addition step is 50-90% by mass; and the temperature of the granulated gel and the temperature of the water-containing gel-like crosslinked polymer is 50-100° C.
    Type: Grant
    Filed: May 16, 2019
    Date of Patent: April 30, 2024
    Assignee: NIPPON SHOKUBAI CO., LTD.
    Inventors: Satoshi Matsumoto, Kenji Kadonaga, Kunihiko Ishizaki
  • Publication number: 20240118633
    Abstract: An electrophotographic photosensitive member including: a support, a charge generating layer, and a charge transporting layer in this order, wherein the charge transporting layer contains: a compound represented by the formula (A-1), and at least one selected from the group consisting of a compound represented by the formula (A-2) and a compound represented by the formula (A-3).
    Type: Application
    Filed: September 8, 2023
    Publication date: April 11, 2024
    Inventors: TATSUYA OHSAWA, KUNIHIKO SEKIDO, SHUHEI IWASAKI, NAOYUKI MATSUMOTO
  • Publication number: 20240118655
    Abstract: An object of the present disclosure is to provide an electrophotographic photosensitive member with suppressed positive ghosts, and a process cartridge and an electrophotographic apparatus each including the electrophotographic photosensitive member. The present disclosure provides an electrophotographic photosensitive member having a support and a photosensitive layer on the support; the photosensitive layer comprises (?) a compound represented by the formula (1), and (?) at least one selected from the group consisting of a compound represented by the formula (2) and a compound represented by the formula (3), wherein a content of the (?) with respect to a content of the (?) is 50 to 850 mass ppm in the photosensitive layer.
    Type: Application
    Filed: September 8, 2023
    Publication date: April 11, 2024
    Inventors: KUNIHIKO SEKIDO, SHUHEI IWASAKI, TATSUYA OHSAWA, NAOYUKI MATSUMOTO, ATSUSHI OKUDA, TSUTOMU NISHIDA
  • Publication number: 20240111224
    Abstract: An object of the present disclosure is to provide an electrophotographic photosensitive member which can suppress the potential fluctuation due to repeated use even with the electrophotographic apparatus of high printing process speed. The present disclosure provides an electrophotographic photosensitive member comprising: a support, a charge generating layer, and a charge transporting layer in this order, wherein the charge transporting layer comprises: (?) a compound represented by the formula (C-1), and (?) at least one selected from the group consisting of a compound represented by the following formula (C-2) and a compound represented by the formula (C-3), wherein a content of the (?) in the charge transporting layer with respect to a total mass of the charge transporting layer is 250 to 610 mass ppm.
    Type: Application
    Filed: September 8, 2023
    Publication date: April 4, 2024
    Inventors: SHUHEI IWASAKI, KUNIHIKO SEKIDO, TATSUYA OHSAWA, NAOYUKI MATSUMOTO
  • Patent number: 11042431
    Abstract: A failure prediction apparatus includes a memory and a processor coupled to the memory. The processor acquires a score based on an output of each of a plurality of sensors associated with each of a plurality of circuit arrangement regions, in each of the plurality of circuit arrangement regions a logic circuit constructed by programming is arrangeable, and performs a process of making a determination on a possibility of an occurrence of a failure with respect to each of the plurality of circuit arrangement regions based on the score for each of the circuit arrangement regions.
    Type: Grant
    Filed: April 23, 2019
    Date of Patent: June 22, 2021
    Assignee: FUJITSU LIMITED
    Inventors: Kunihiko Matsumoto, Naoyuki Takeshita, Masahiro Dohi, Hisaya Urabe
  • Publication number: 20190354419
    Abstract: A failure prediction apparatus includes a memory and a processor coupled to the memory. The processor acquires a score based on an output of each of a plurality of sensors associated with each of a plurality of circuit arrangement regions, in each of the plurality of circuit arrangement regions a logic circuit constructed by programming is arrangeable, and performs a process of making a determination on a possibility of an occurrence of a failure with respect to each of the plurality of circuit arrangement regions based on the score for each of the circuit arrangement regions.
    Type: Application
    Filed: April 23, 2019
    Publication date: November 21, 2019
    Applicant: FUJITSU LIMITED
    Inventors: Kunihiko Matsumoto, Naoyuki Takeshita, Masahiro Dohi, Hisaya Urabe
  • Patent number: 8033590
    Abstract: An object is to provide an assist grip for an operator to easily ride on/off an operation section. An assist grip 31 for supporting a weight of an operator riding on/off an operation section 4 is disposed in front of a steering wheel 11 so as to overlap steering wheel 11 when viewed in front.
    Type: Grant
    Filed: December 25, 2006
    Date of Patent: October 11, 2011
    Assignee: Yanmar Co., Ltd.
    Inventors: Junko Shibaoka, Kunihiko Matsumoto, Toshikazu Matsubayashi, Naoki Yamamoto
  • Patent number: 7931301
    Abstract: The purpose of the present invention is to make supplying fuel to a fuel tank easier without making the fuel tank interfere with a drive shaft or a front wheel drive shaft and without lowering the minimum ground clearance of a traveling vehicle. A fuel tank is disposed between an engine and a seat and below a steering wheel, and a groove is provided longitudinally at the substantial lateral center of the fuel tank. A power steering valve is attached to the lower portion of the steering wheel, and grooves in which hydraulic pipings connected to the power steering valve are arranged are formed in the fuel tank.
    Type: Grant
    Filed: May 18, 2006
    Date of Patent: April 26, 2011
    Assignee: Yanmar Co., Ltd.
    Inventor: Kunihiko Matsumoto
  • Patent number: 7817670
    Abstract: In a transmitting end, positional information indicating positions of data packets to be reproduced in a receiving end among data packets in an inputted bit stream is generated with a plurality of data packets as one unit, and generated one piece of positional information is given to a plurality of data packets, and the data packets with the positional information are transmitted. In a receiving end, reproduction timings are controlled based on the received positional information, and the received data packets are reproduced. As a result, even if a time interval of the data packets to be reproduced in the receiving end in the bit stream inputted into the transmitting end doesn't have a fixed period, the data packets can be reproduced in the receiving end in the same timing as in the transmitting end by only giving one piece of positional information to the plurality of data packets.
    Type: Grant
    Filed: August 24, 2004
    Date of Patent: October 19, 2010
    Assignee: Fujitsu Semiconductor Limited
    Inventors: Kunihiko Matsumoto, Yuji Tarui, Hiromitsu Horie, Ryuichi Yoda
  • Patent number: 7604277
    Abstract: A working vehicle comprises a dashboard, a boss and an assist grip. The boss is provided on the dashboard so as to have a surface in which a hole is opened. The assist grip is provided with a flange, and provided with a base portion extended from the flange. The assist grip is mounted on the dashboard so that the base portion is inserted into the hole of the boss and the flange is placed on the surface of the boss.
    Type: Grant
    Filed: October 23, 2007
    Date of Patent: October 20, 2009
    Assignee: Yanmar Co., Ltd.
    Inventors: Kunihiko Matsumoto, Junko Shibaoka, Toshikazu Matsubayashi, Naoki Yamamoto
  • Patent number: 7549693
    Abstract: An object is to provide an assist grip for an operator to easily ride on/off an operation section. An assist grip for supporting a weight of an operator riding on/off an operation section is disposed in front of a steering wheel so as to overlap steering wheel when viewed in front.
    Type: Grant
    Filed: October 23, 2007
    Date of Patent: June 23, 2009
    Assignee: Yanmar Co., Ltd.
    Inventors: Junko Shibaoka, Kunihiko Matsumoto, Toshikazu Matsubayashi, Naoki Yamamoto
  • Publication number: 20090101657
    Abstract: The purpose of the present invention is to make supply of fuel to a fuel tank easy without making the fuel tank interfere with a drive shaft or a front wheel drive shaft and without lowering minimum ground clearance of a traveling vehicle. A fuel tank 12 is disposed between an engine 5 and a seat 7 and below a steering wheel 6, and a groove 12c is provided longitudinally at the substantial lateral center of the fuel tank 12. A power steering valve 24 is attached to the lower portion of the steering wheel 6, and grooves 12L and 12R in which hydraulic pipings 32 and 33 connected to the power steering valve 24 are arranged is formed in the fuel tank 12.
    Type: Application
    Filed: May 18, 2006
    Publication date: April 23, 2009
    Applicant: Yanmar Co.
    Inventor: Kunihiko Matsumoto
  • Patent number: D605668
    Type: Grant
    Filed: May 12, 2009
    Date of Patent: December 8, 2009
    Assignee: Yanmar Co., Ltd.
    Inventors: Kunihiko Matsumoto, Naoki Yamamoto
  • Patent number: D605669
    Type: Grant
    Filed: May 12, 2009
    Date of Patent: December 8, 2009
    Assignee: Yanmar Co., Ltd.
    Inventors: Kunihiko Matsumoto, Naoki Yamamoto
  • Patent number: D760815
    Type: Grant
    Filed: April 23, 2015
    Date of Patent: July 5, 2016
    Assignee: Yanmar Co., Ltd.
    Inventors: Kiyoyuki Okuyama, Kenji Watabe, Kunihiko Matsumoto
  • Patent number: D773359
    Type: Grant
    Filed: April 13, 2015
    Date of Patent: December 6, 2016
    Assignee: Yanmar Co., Ltd.
    Inventors: Kiyoyuki Okuyama, Masakazu Komatsu, Kunihiko Matsumoto
  • Patent number: D782548
    Type: Grant
    Filed: March 23, 2016
    Date of Patent: March 28, 2017
    Assignee: YANMAR CO., LTD.
    Inventors: Kiyoyuki Okuyama, Kunihiko Matsumoto, Shuuichi Mitani
  • Patent number: D784422
    Type: Grant
    Filed: March 28, 2016
    Date of Patent: April 18, 2017
    Assignee: YANMAR CO., LTD.
    Inventors: Kiyoyuki Okuyama, Kunihiko Matsumoto, Kenji Watabe
  • Patent number: D785051
    Type: Grant
    Filed: March 28, 2016
    Date of Patent: April 25, 2017
    Assignee: YANMAR CO., LTD.
    Inventors: Kiyoyuki Okuyama, Kunihiko Matsumoto, Kenji Watabe
  • Patent number: D785053
    Type: Grant
    Filed: March 7, 2016
    Date of Patent: April 25, 2017
    Assignee: Yanmar Co., Ltd.
    Inventors: Kiyoyuki Okuyama, Kenji Watabe, Kunihiko Matsumoto