Patents by Inventor Jun Nakatsuka

Jun Nakatsuka 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: 11916563
    Abstract: Provided are an analog-to-digital (AD) converter, a sensor processing circuit, and a sensor system capable of improving responsiveness of feedback control. AD converter includes input part, AD conversion part, first output part, and second output part. The analog signal output from sensor is input to input part. AD conversion part digitally converts an analog signal to generate first digital data and second digital data. First output part outputs the first digital data to control circuit. Second output part outputs the second digital data to sensor before first output part outputs the first digital data.
    Type: Grant
    Filed: March 9, 2020
    Date of Patent: February 27, 2024
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Jun'Ichi Naka, Koji Obata, Junji Nakatsuka, Hiroki Yoshino, Masaaki Nagai
  • Patent number: 10201953
    Abstract: A steel foil according to an aspect of the present invention includes a rolled steel foil; and a Ni having <111>//RD texture plated on an outermost layer of the rolled steel foil. Regarding the steel foil, a <111> pole density in an inverse pole figure of a rolling direction may be 3.0 or more and 6.0 or less.
    Type: Grant
    Filed: April 18, 2013
    Date of Patent: February 12, 2019
    Assignees: NIPPON STEEL & SUMITOMO METAL CORPORATION, NIPPON STEEL & SUMIKIN MATERIALS CO., LTD.
    Inventors: Kiyokazu Ishizuka, Yuji Kubo, Jun Nakatsuka, Shuji Nagasaki
  • Patent number: 9997786
    Abstract: A steel foil according to an aspect of the present invention includes, by mass %, C: 0.0001 to 0.02%; Si: 0.001 to 0.01%; Mn: 0.01 to 0.3%; P: 0.001 to 0.02%; S: 0.0001 to 0.01%; Al: 0.0005 to 0.1%; N: 0.0001 to 0.004%; and a balance consisting of Fe and impurities, wherein a thickness is 5 to 15 ?m, and a tensile strength is more than 900 MPa and 1.200 MPa or less.
    Type: Grant
    Filed: April 18, 2013
    Date of Patent: June 12, 2018
    Assignees: NIPPON STEEL & SUMITOMO METAL CORPORATION, NIPPON STEEL & SUMIKIN MATERIALS CO., LTD.
    Inventors: Kiyokazu Ishizuka, Yuji Kubo, Jun Nakatsuka, Shuji Nagasaki
  • Patent number: 9905817
    Abstract: A resin-metal composite sealed container having a heat seal part using a heat-sealing resin, between an end part of a first metal foil and an end part of a second metal foil, and a metallically sealed part with a weld bead, on the end face outside the heat sealed part of the first metal foil and the second metal foil. The resin-metal composite sealed container, wherein the melting point of the metal constituting the metal foil is higher by 300° C. or more than the thermal decomposition temperature of the heat-sealing resin, the specific gravity of the metal constituting the metal foil is 5 or more, and the weld bead is formed by a laser welding.
    Type: Grant
    Filed: February 21, 2013
    Date of Patent: February 27, 2018
    Assignees: NIPPON STEEL & SUMIKIN MATERIALS CO., LTD., HONDA MOTOR CO., LTD.
    Inventors: Koichi Nose, Jun Nakatsuka, Yutaka Matsuzawa, Yu Murai
  • Patent number: 9718688
    Abstract: A thin-plate-like flexible carbon plate having flexibility, excellent compressive strength, and even electrical conductivity is provided. A carbon plate 1 is a carbon plate having a thickness of 0.05 to 2.0 mm obtained by compression molding of a mixture of (a) 97 to 80 wt % carbon powder composed of 95 to 30 wt % expanded graphite powder and 5 to 70 wt % graphite powder, and (b) 3 to 20 wt % phenolic resin that do not contain ammonia, wherein a compressive strength is 3 MPa or more, a bending strain is 0.6% or more without a crack, and a contact resistance is 6 m?·cm2 or less.
    Type: Grant
    Filed: March 20, 2014
    Date of Patent: August 1, 2017
    Assignees: Nippon Steel & Sumikin Materials Co., Ltd., Nippon Steel & Sumitomo Metal Corporation
    Inventors: Eiki Tsushima, Shinkichi Murakami, Jun Nakatsuka, Kenichi Uemura, Takashi Iijima
  • Publication number: 20160052787
    Abstract: A thin-plate-like flexible carbon plate having flexibility, excellent compressive strength, and even electrical conductivity is provided. A carbon plate 1 is a carbon plate having a thickness of 0.05 to 2.0 mm obtained by compression molding of a mixture of (a) 97 to 80 wt % carbon powder composed of 95 to 30 wt % expanded graphite powder and 5 to 70 wt % graphite powder, and (b) 3 to 20 wt % phenolic resin that do not contain ammonia, wherein a compressive strength is 3 MPa or more, a bending strain is 0.6% or more without a crack, and a contact resistance is 6 m?·cm2 or less.
    Type: Application
    Filed: March 20, 2014
    Publication date: February 25, 2016
    Inventors: Eiki TSUSHIMA, Shinkichi MURAKAMI, Jun NAKATSUKA, Kenichi UEMURA, Takashi IIJIMA
  • Publication number: 20150037684
    Abstract: A steel foil according to an aspect of the present invention includes, by mass %, C: 0.0001 to 0.02%; Si: 0.001 to 0.01%; Mn: 0.01 to 0.3%; P: 0.001 to 0.02%; S: 0.0001 to 0.01%; Al: 0.0005 to 0.1%; N: 0.0001 to 0.004%; and a balance consisting of Fe and impurities, wherein a thickness is 5 to 15 ?m, and a tensile strength is more than 900 MPa and 1.200 MPa or less.
    Type: Application
    Filed: April 18, 2013
    Publication date: February 5, 2015
    Inventors: Kiyokazu Ishizuka, Yuji Kubo, Jun Nakatsuka, Shuji Nagasaki
  • Publication number: 20150030912
    Abstract: A resin-metal composite sealed container having a heat seal part using a heat-sealing resin, between an end part of a first metal foil and an end part of a second metal foil, and a metallically sealed part with a weld bead, on the end face outside the heat sealed part of the first metal foil and the second metal foil. The resin-metal composite sealed container, wherein the melting point of the metal constituting the metal foil is higher by 300° C. or more than the thermal decomposition temperature of the heat-sealing resin, the specific gravity of the metal constituting the metal foil is 5 or more, and the weld bead is formed by a laser welding.
    Type: Application
    Filed: February 21, 2013
    Publication date: January 29, 2015
    Inventors: Koichi Nose, Jun Nakatsuka, Yutaka Matsuzawa, Yu Murai
  • Publication number: 20140287259
    Abstract: A steel foil according to an aspect of the present invention includes a rolled steel foil; and a Ni having <111>//RD texture plated on an outermost layer of the rolled steel foil. Regarding the steel foil, a <111> pole density in an inverse pole figure of a rolling direction may be 3.0 or more and 6.0 or less.
    Type: Application
    Filed: April 18, 2013
    Publication date: September 25, 2014
    Inventors: Kiyokazu Ishizuka, Yuji Kubo, Jun Nakatsuka, Shuji Nagasaki
  • Publication number: 20100233509
    Abstract: The present invention provides a laminate structure with little warping comprised of a stainless steel foil, a resin, and a metal foil, that is, a laminate structure comprised of a three-layer structure of a stainless steel foil, a resin, and a metal foil wherein the stainless steel foil is comprised of mixed phases of a ferromagnetic phase and a nonferromagnetic phase and the ratio of the ferromagnetic phase is 0.1 mass % to 4.0 mass %.
    Type: Application
    Filed: April 14, 2006
    Publication date: September 16, 2010
    Inventors: Tsuyoshi Yamamoto, Shuji Nagasaki, Atsushi Mizuyama, Jun Nakatsuka
  • Publication number: 20100143743
    Abstract: A stainless steel substrate with one or more conductive metal layers, a method for manufacturing the same, and a hard disk drive suspension material using the same that are excellent in etching accuracy and does not involve the use of any substances casing environmental burdens, while ensuring stable adhesion between the conductive metal layers on the stainless steel substrate and the polyimide-based resin layer. The conductive metal layers are formed to have a total thickness ranging from 0.1 to 10 ?m, a centerline average surface roughness Ra from 0.05 to 1 ?m, and a ten-point average surface roughness Rz from 1 to 5 ?m, respectively.
    Type: Application
    Filed: January 26, 2007
    Publication date: June 10, 2010
    Applicant: NIPPON STEEL MATERIALS CO., LTD.
    Inventors: Yoshito Yamasaki, Jun Nakatsuka, Shuji Nagasaki, Tooru Inaguma, Yuji Kubo, Tsutomu Sugiura
  • Patent number: 6187452
    Abstract: An ultrathin stainless steel foil of a thickness of 25 &mgr;m or less whose average number of inclusions of a major diameter of 5 &mgr;m or greater per 1 mm2 in sections along the rolling direction is 3 or less. The ultrathin stainless steel foil is not readily susceptible to the local tunnel-like corrosions (voids) that have occasionally occurred, during etching, together with cracking in the rolling direction from the edges.
    Type: Grant
    Filed: March 20, 2000
    Date of Patent: February 13, 2001
    Assignee: Nippon Steel Corporation
    Inventors: Izumi Muto, Michio Nakata, Yoshihiro Fujii, Kenji Hirashima, Shuji Nagasaki, Jun Nakatsuka, Tsuyoshi Nakano
  • Patent number: 4851059
    Abstract: A non-magnetic cold-deformed stainless steel usable for electronic equipment parts has a Vickers hardness number after cold forming of not less than 400 and a magnetic permeability of not more than 1.01. The steel has excellent hot workability and is mainly used for components such as shafts and pins of VTRs and VTR cassette tapes.
    Type: Grant
    Filed: March 7, 1988
    Date of Patent: July 25, 1989
    Assignees: Nippon Steel Corp., TNK Sanwa Precision Co., Ltd.
    Inventors: Hidehiko Sumitomo, Takanori Nakazawa, Jun Nakatsuka, Jiro Tominaga, Yoshiaki Kanai