Patents by Inventor Ken Sawada

Ken Sawada 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: 11018171
    Abstract: The present technology relates to a transistor and a manufacturing method that make it possible to reduce noise. The transistor includes a gate electrode, a source region, and a drain region. The gate electrode is formed on a semiconductor substrate. The source region is formed on a surface of the semiconductor substrate and extended from the gate electrode. The drain region is positioned to oppose the source region and formed on the surface of the semiconductor substrate without being brought into contact with the gate electrode. The source region and the drain region are asymmetrical. The drain region is formed at a position deeper than the source region. At a gate end of the gate electrode, the drain region is formed at a distance from the surface of the semiconductor substrate. The present technology is applicable, for example, to an amplifying transistor.
    Type: Grant
    Filed: January 19, 2018
    Date of Patent: May 25, 2021
    Assignee: Sony Semiconductor Solutions Corporation
    Inventors: Ken Sawada, Akiko Honjo
  • Patent number: 10926970
    Abstract: A post-processing apparatus includes a binding tool configured to bind a sheet bundle, a binding tool driver, and control circuitry. The binding tool driver is configured to apply a driving force to move the binding tool to a first binding position at which the binding tool executes a first binding process on the sheet bundle and a second binding position different from the first binding position. At the second binding position, the binding tool executes a second binding process on the sheet bundle. The control circuitry is configured to cause the binding tool driver to move the binding tool to the first binding position at a first movement speed to execute the first binding process, and move the binding tool from the first binding position to the second binding position at a second movement speed slower than the first movement speed to execute the second binding process.
    Type: Grant
    Filed: October 30, 2019
    Date of Patent: February 23, 2021
    Assignee: RICOH COMPANY, LTD.
    Inventors: Shinji Tanoue, Katsuji Yamaguchi, Akikazu Iwata, Ken Sawada
  • Publication number: 20200172367
    Abstract: A post-processing apparatus includes a binding tool configured to bind a sheet bundle, a binding tool driver, and control circuitry. The binding tool driver is configured to apply a driving force to move the binding tool to a first binding position at which the binding tool executes a first binding process on the sheet bundle and a second binding position different from the first binding position. At the second binding position, the binding tool executes a second binding process on the sheet bundle. The control circuitry is configured to cause the binding tool driver to move the binding tool to the first binding position at a first movement speed to execute the first binding process, and move the binding tool from the first binding position to the second binding position at a second movement speed slower than the first movement speed to execute the second binding process.
    Type: Application
    Filed: October 30, 2019
    Publication date: June 4, 2020
    Applicant: Ricoh Company, Ltd.
    Inventors: Shinji TANOUE, Katsuji YAMAGUCHI, Akikazu IWATA, Ken SAWADA
  • Patent number: 10611984
    Abstract: The refrigerating machine oil according to the present invention comprises a polyalkylene glycol represented by the following formula (1): R1—(OR3)n—OR2??(1) [R1 and R2 may be the same or different from each other and each represent a hydrogen atom, an alkyl group having from 1 to 5 carbon atoms, or an acyl group having from 2 to 5 carbon atoms, R3 represents an alkylene group having from 2 to 4 carbon atoms, n represents an integer such that a number average molecular weight of the polyalkylene glycol represented by the formula (1) is from 1000 to 2500] the polyalkylene glycol having a ratio of the weight average molecular weight Mw to the number average molecular weight Mn, Mw/Mn, of from 1.00 to 1.15, the refrigerating machine oil being used with a mildly flammable hydrofluorocarbon refrigerant.
    Type: Grant
    Filed: May 21, 2018
    Date of Patent: April 7, 2020
    Assignee: JXTG Nippon Oil & Energy Corporation
    Inventors: Hitoshi Takahashi, Ken Sawada, Akira Tada, Souichirou Konno
  • Publication number: 20200071118
    Abstract: A sheet processing apparatus that forms a folding line on a sheet includes first and second folding rollers that form a folding line on the sheet by rotating a bent sheet while pinching from sheet surfaces and a first pressing unit that presses the second folding roller against the first folding roller in an arbitrary portion in a rotating shaft direction of the second folding roller.
    Type: Application
    Filed: November 8, 2019
    Publication date: March 5, 2020
    Applicant: Ricoh Company, Ltd.
    Inventors: Ken Sawada, Shigeru Mizuno, Hiroyuki Kuno, Takuya Fukuhara
  • Patent number: 10519000
    Abstract: A sheet processing apparatus that forms a folding line on a sheet includes first and second folding rollers that form a folding line on the sheet by rotating a bent sheet while pinching from sheet surfaces and a first pressing unit that presses the second folding roller against the first folding roller in an arbitrary portion in a rotating shaft direction of the second folding roller.
    Type: Grant
    Filed: August 29, 2018
    Date of Patent: December 31, 2019
    Assignee: RICOH COMPANY, LIMITED
    Inventors: Ken Sawada, Shigeru Mizuno, Hiroyuki Kuno, Takuya Fukuhara
  • Publication number: 20190386047
    Abstract: The present technology relates to a transistor and a manufacturing method that make it possible to reduce noise. The transistor includes a gate electrode, a source region, and a drain region. The gate electrode is formed on a semiconductor substrate. The source region is formed on a surface of the semiconductor substrate and extended from the gate electrode. The drain region is positioned to oppose the source region and formed on the surface of the semiconductor substrate without being brought into contact with the gate electrode. The source region and the drain region are asymmetrical. The drain region is formed at a position deeper than the source region. At a gate end of the gate electrode, the drain region is formed at a distance from the surface of the semiconductor substrate. The present technology is applicable, for example, to an amplifying transistor.
    Type: Application
    Filed: January 19, 2018
    Publication date: December 19, 2019
    Applicant: SONY SEMICONDUCTOR SOLUTIONS CORPORATION
    Inventors: Ken SAWADA, Akiko HONJO
  • Patent number: 10494585
    Abstract: The present invention provides a refrigerating machine oil comprising: an ester of a polyhydric alcohol and a fatty acid as a base oil; and an ether compound of a polyhydric alcohol, the refrigerating machine oil being used with an unsaturated hydrofluorocarbon refrigerant.
    Type: Grant
    Filed: February 12, 2016
    Date of Patent: December 3, 2019
    Assignee: JXTG Nippon Oil & Energy Corporation
    Inventors: Akira Tada, Ken Sawada
  • Patent number: 10323208
    Abstract: The present invention provides a refrigerating machine oil containing an ester base oil obtained from pentaerythritol and mixed fatty acids of a fatty acid having 8 carbon atoms and a fatty acid having 9 carbon atoms, wherein a ratio of a weight average molecular weight Mw to a number average molecular weight Mn, Mw/Mn, of the ester base oil is 1.06 to 1.20, and used with a mildly flammable hydrofluorocarbon refrigerant.
    Type: Grant
    Filed: October 22, 2015
    Date of Patent: June 18, 2019
    Assignee: JXTG Nippon Oil & Energy Corporation
    Inventors: Hitoshi Takahashi, Hiroko Shimpo, Souichirou Konno, Ken Sawada, Kentaro Yamaguchi
  • Publication number: 20180370751
    Abstract: A sheet processing apparatus that forms a folding line on a sheet includes first and second folding rollers that form a folding line on the sheet by rotating a bent sheet while pinching from sheet surfaces and a first pressing unit that presses the second folding roller against the first folding roller in an arbitrary portion in a rotating shaft direction of the second folding roller.
    Type: Application
    Filed: August 29, 2018
    Publication date: December 27, 2018
    Applicant: Ricoh Company, Ltd.
    Inventors: Ken SAWADA, Shigeru Mizuno, Hiroyuki Kuno, Takuya Fukuhara
  • Publication number: 20180337791
    Abstract: The present disclosure relates to a signal processing circuit and method for the same capable of generating a stable physical unclonable function (PUF) being less susceptible to environmental changes and having less characteristic deterioration. Two VDDs are voltages alternately inverted. The two VDDs perform charge and discharge such that one is turned on while the other is turned off, and a current flows by a difference at an edge during switching (inversion). The output I1 is proportional to a capacitance value difference between the pair of DUTs, and the capacitance value difference between the pair of DUTs can be obtained by ?C=?I/(VDD*f). The present technology is applicable to a signal processing circuit on which a differential pair is mounted, for example.
    Type: Application
    Filed: November 2, 2016
    Publication date: November 22, 2018
    Inventors: HIROAKI AMMO, KEN SAWADA
  • Patent number: 10124981
    Abstract: A sheet processing apparatus that forms a folding line on a sheet includes first and second folding rollers that form a folding line on the sheet by rotating a bent sheet while pinching from sheet surfaces and a first pressing unit that presses the second folding roller against the first folding roller in an arbitrary portion in a rotating shaft direction of the second folding roller.
    Type: Grant
    Filed: June 5, 2017
    Date of Patent: November 13, 2018
    Assignee: RICOH COMPANY, LIMITED
    Inventors: Ken Sawada, Shigeru Mizuno, Hiroyuki Kuno, Takuya Fukuhara
  • Publication number: 20180265801
    Abstract: The refrigerating machine oil according to the present invention comprises a polyalkylene glycol represented by the following formula (1): R1—(OR3)n—OR2??(1) [R1 and R2 may be the same or different from each other and each represent a hydrogen atom, an alkyl group having from 1 to 5 carbon atoms, or an acyl group having from 2 to 5 carbon atoms, R3 represents an alkylene group having from 2 to 4 carbon atoms, n represents an integer such that a number average molecular weight of the polyalkylene glycol represented by the formula (1) is from 1000 to 2500] the polyalkylene glycol having a ratio of the weight average molecular weight Mw to the number average molecular weight Mn, Mw/Mn, of from 1.00 to 1.15, the refrigerating machine oil being used with a mildly flammable hydrofluorocarbon refrigerant.
    Type: Application
    Filed: May 21, 2018
    Publication date: September 20, 2018
    Applicant: JXTG Nippon Oil & Energy Corporation
    Inventors: Hitoshi Takahashi, Ken Sawada, Akira Tada, Souichirou Konno
  • Patent number: 10053647
    Abstract: The present invention provides a working fluid composition for a refrigerating machine, comprising a refrigerating machine oil that comprises an ester of a polyhydric alcohol and a fatty acid, an epoxy compound, and a phosphorus compound, and a fluoropropene refrigerant, wherein the polyhydric alcohol constituting the ester comprises pentaerythritol and dipentaerythritol, the fatty acid constituting the ester comprises at least one selected from fatty acids having 4 to 9 carbon atoms, and the epoxy compound and the phosphorus compound satisfy a condition represented by the following formula (1). [ Formula ? ? 1 ] ? 0.10 ? ( N E M E · W E ) ( N P M P · W P ) ? 1.
    Type: Grant
    Filed: December 22, 2014
    Date of Patent: August 21, 2018
    Assignees: Denso Corporation, Kabushki Kaisha Toyota Jidoshokki, JX Nippon Oil & Energy Corporation
    Inventors: Masataka Muto, Hajime Mukawa, Takekazu Kano, Genki Hayashi, Kazuki Yamamoto, Takahiro Hoshida, Hitoshi Takahashi, Ken Sawada, Akira Tada, Souichirou Konno
  • Patent number: 10023823
    Abstract: The present invention provides a refrigerating machine oil comprising, as a base oil, at least one oxygen-containing oil having a carbon/oxygen molar ratio of 2.5 or more and 5.8 or less, wherein the refrigerating machine oil is used with a refrigerant comprising 15% by mass or more of difluoromethane, 15% by mass or more of pentafluoroethane, 15% by mass or more of 2,3,3,3-tetrafluoropropene and 15% by mass or more of 1,1,1,2-tetrafluoroethane based on the total amount of the refrigerant.
    Type: Grant
    Filed: September 24, 2015
    Date of Patent: July 17, 2018
    Assignee: JXTG NIPPON OIL & ENERGY CORPORATION
    Inventors: Hitoshi Takahashi, Hiroko Shimpo, Souichirou Konno, Ken Sawada, Kentaro Yamaguchi
  • Patent number: 10005981
    Abstract: The refrigerating machine oil according to the present invention comprises a polyalkylene glycol represented by the following formula (1): R1—(OR3)n—OR2??(1) [R1 and R2 may be the same or different from each other and each represent a hydrogen atom, an alkyl group having from 1 to 5 carbon atoms, or an acyl group having from 2 to 5 carbon atoms, R3 represents an alkylene group having from 2 to 4 carbon atoms, n represents an integer such that a number average molecular weight of the polyalkylene glycol represented by the formula (1) is from 1000 to 2500] the polyalkylene glycol having a ratio of the weight average molecular weight Mw to the number average molecular weight Mn, Mw/Mn, of from 1.00 to 1.15, the refrigerating machine oil being used with a mildly flammable hydrofluorocarbon refrigerant.
    Type: Grant
    Filed: September 30, 2014
    Date of Patent: June 26, 2018
    Assignee: JXTG Nippon Oil & Energy Corporation
    Inventors: Hitoshi Takahashi, Ken Sawada, Akira Tada, Souichirou Konno
  • Publication number: 20180044607
    Abstract: The present invention provides a refrigerating machine oil comprising: an ester of a polyhydric alcohol and a fatty acid as a base oil; and an ether compound of a polyhydric alcohol, the refrigerating machine oil being used with an unsaturated hydrofluorocarbon refrigerant.
    Type: Application
    Filed: February 12, 2016
    Publication date: February 15, 2018
    Applicant: JXTG Nippon Oil & Energy Corporation
    Inventors: Akira Tada, Ken Sawada
  • Patent number: 9834737
    Abstract: The present invention provides a refrigerating machine oil composition comprising an ester-based base oil, an epoxy compound, and a carbodiimide compound, the refrigerating machine oil composition being used with a refrigerant containing a fluoropropene in a refrigerating machine comprising a member containing polyethylene terephthalate and/or a member containing hydrogenated acrylonitrile butadiene rubber.
    Type: Grant
    Filed: September 30, 2014
    Date of Patent: December 5, 2017
    Assignee: JX NIPPON OIL & ENERGY CORPORATION
    Inventors: Hitoshi Takahashi, Ken Sawada, Akira Tada, Souichirou Konno
  • Publication number: 20170327759
    Abstract: The present invention provides a refrigerating machine oil comprising, as a base oil, at least one oxygen-containing oil having a carbon/oxygen molar ratio of 2.5 or more and 5.8 or less, wherein the refrigerating machine oil is used with a refrigerant comprising 15% by mass or more of difluoromethane, 15% by mass or more of pentafluoroethane, 15% by mass or more of 2,3,3,3-tetrafluoropropene and 15% by mass or more of 1,1,1,2-tetrafluoroethane based on the total amount of the refrigerant.
    Type: Application
    Filed: September 24, 2015
    Publication date: November 16, 2017
    Applicant: JX NIPPON OIL & ENERGY CORPORATION
    Inventors: Hitoshi TAKAHASHI, Hiroko SHIMPO, Souichirou KONNO, Ken SAWADA, Kentaro YAMAGUCHI
  • Patent number: D876919
    Type: Grant
    Filed: October 2, 2018
    Date of Patent: March 3, 2020
    Assignees: MINEBEA MITSUMI INC., KOMAZAWA TECHNOLOGY CO., LTD.
    Inventors: Ken Sawada, Shuji Kobayashi