Patents by Inventor Tsutomu Ikeda

Tsutomu Ikeda 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: 12128753
    Abstract: A lower structure for a hybrid automobile in which a high-voltage battery is disposed in a lower surface of a floor panel includes an engine exhaust system component which is disposed in front of the high-voltage battery in the lower surface of the floor panel and on one vehicle-width-direction side of a center in a vehicle width direction and high-voltage devices which are disposed in front of the high-voltage battery and on another vehicle-width-direction side of the center in the vehicle width direction. In-vehicle equipment is disposed between the high-voltage battery and the high-voltage devices, and the in-vehicle equipment is in an inclined state where an upper surface of the in-vehicle equipment is inclined in a front-rear direction such that the in-vehicle equipment has a shorter dimension in the front-rear direction than a dimension in a horizontal state where the upper surface becomes horizontal.
    Type: Grant
    Filed: July 19, 2022
    Date of Patent: October 29, 2024
    Assignee: MAZDA MOTOR CORPORATION
    Inventors: Yoshinori Ikeda, Tsutomu Shibata, Yosuke Sawada, Tetsuya Shimomura
  • Publication number: 20240255320
    Abstract: The present invention is the optical fiber sensor, that laser pulses from a laser source are separated into a reference path and a measurement path by the second optical coupler via the first optical coupler, the first FRM is provided at an end of the reference path, the second FRM is provided at an end of the measurement path, and the reference reflected light of the first FRM and the measurement reflected light of the second FRM are interfered at the second optical coupler and are converted into three phases. The first phase pulses are transmitted to the optical synthesis section via the first optical coupler, second phase pulses are transmitted to the optical synthesis section via the first delay section, and third phase pulses are transmitted to the optical synthesis section via the second delay section. The time division pulse train is outputted from the optical synthesis section.
    Type: Application
    Filed: October 16, 2023
    Publication date: August 1, 2024
    Inventors: Toshiharu IKEDA, Tsutomu YAMATE, Masashi SAIJO, Minoru YOSHIDA
  • Publication number: 20220113466
    Abstract: Provided is an optical apparatus (1B) or a display apparatus including: a light guide plate (14); a support portion (16) that supports the light guide plate; a cover portion (17) that covers at least a part of the light guide plate; and a metal portion (18) disposed between the cover portion and at least one of the light guide plate or the support portion.
    Type: Application
    Filed: June 28, 2019
    Publication date: April 14, 2022
    Inventor: TSUTOMU IKEDA
  • Publication number: 20200305489
    Abstract: The method of the present invention for producing cellulose nanofiber from almond seed coat includes alkali cooking a food manufacturing by-product containing plant fiber with an alkali acceptable for food use, washing the object, bleaching the pulp component containing cellulose and hemicellulose thus obtained using a chemical acceptable for food use, washing the object with water, and mechanically fibrillating and grinding the pulp component obtained above, thereby obtaining cellulose nanofiber. The present invention allows efficient production of highly safe cellulose nanofiber from a food manufacturing by-product as a raw material, or almond seed coat acceptable for food use.
    Type: Application
    Filed: July 9, 2019
    Publication date: October 1, 2020
    Inventors: HIROSHI EBITSUBO, YOSHINAO HORIE, TSUTOMU IKEDA, NORIKO HAYASHI
  • Patent number: 9470553
    Abstract: Rotation angle detection apparatus includes a magnet provided in a main gear and a magnetism detector positioned to face to the magnet. Magnet rotates integrally with main gear and magnetism detector detects changes in magnetic field of magnet so a rotation angle of main gear is detected. Main gear includes bottomed recessed part and plurality of mounting pins arranged in recessed part. Magnet is inserted in recessed part wherein a part of magnet protrudes from an upper end of the recessed part. Magnet inserted in recessed part is pressed against main gear by an elastically deformable retaining plate made of non-magnetic material. An outer portion of retaining plate includes plurality of mounting holes. Magnet inserted in recessed part is pressed against main gear by elastically deformed retaining plate and mounting pins inserted in mounting holes are thermally caulked wherein magnet is secured to the main gear.
    Type: Grant
    Filed: April 15, 2015
    Date of Patent: October 18, 2016
    Assignee: AISAN KOGYO KABUSHIKI KAISHA
    Inventors: Tsutomu Ikeda, Tetsuo Suzuoki, Junpei Hayashi, Akihito Kuno
  • Publication number: 20150338241
    Abstract: Rotation angle detection apparatus includes a magnet provided in a main gear and a magnetism detector positioned to face to the magnet. Magnet rotates integrally with main gear and magnetism detector detects changes in magnetic field of magnet so a rotation angle of main gear is detected. Main gear includes bottomed recessed part and plurality of mounting pins arranged in recessed part. Magnet is inserted in recessed part wherein a part of magnet protrudes from an upper end of the recessed part. Magnet inserted in recessed part is pressed against main gear by an elastically deformable retaining plate made of non-magnetic material. An outer portion of retaining plate includes plurality of mounting holes. Magnet inserted in recessed part is pressed against main gear by elastically deformed retaining plate and mounting pins inserted in mounting holes are thermally caulked wherein magnet is secured to the main gear.
    Type: Application
    Filed: April 15, 2015
    Publication date: November 26, 2015
    Inventors: Tsutomu IKEDA, Tetsuo SUZUOKI, Junpei HAYASHI, Akihito KUNO
  • Patent number: 8981769
    Abstract: A rotational angle detection device may include a sensor wiring member and a motor wiring member. Each of the sensor wiring member and the motor wiring member includes a terminal body section and a connector section that are formed separately from each other and are electrically connected to each other via a connection structure.
    Type: Grant
    Filed: September 14, 2012
    Date of Patent: March 17, 2015
    Assignee: Aisan Kogyo Kabushiki Kaisha
    Inventors: Tsutomu Ikeda, Masashi Kishi, Yuichi Nishida, Fusatomo Miyake, Tatsuhisa Matsuda, Hiroki Shimoto, Makoto Mase
  • Patent number: 8957673
    Abstract: A rotational angle sensor and a method for manufacturing the same, and a throttle control device with a rotational angle sensor, which may lower the cost, are provided. The rotational angle sensor includes each sensor IC for detecting a rotational angle of a rotor based on a magnetic field generated between a pair of magnets respectively disposed across the rotational axis of the rotor; each main terminal connected with each connection terminal of each sensor IC; and a holder member for holding each sensor IC and connection portions of each main terminal on each sensor side. A sensor assembly is constructed to form the sensor ICs the main terminals and the holder member into an assembly. A potting material is potted into the holder member.
    Type: Grant
    Filed: September 15, 2011
    Date of Patent: February 17, 2015
    Assignee: Aisan Kogyo Kabushiki Kaisha
    Inventors: Tsutomu Ikeda, Yoshihiro Sakuma, Masaharu Nagasaka, Koji Yoshikawa, Kazumasa Nakashima
  • Patent number: 8635986
    Abstract: Angle sensor device has magnetic force detectors detecting alternation of magnetic force caused by rotation of a throttle gear. The magnetic force detectors are buried in a molded body of the angle sensor device constructed of foamed resin. The magnetic force detectors each has a sensing unit detecting alteration of magnetic force and a computing unit computing based on signals from the sensing unit and outputting signals depending on the alteration of magnetic force and is formed in L-shape. Two of the magnetic force detectors are placed opposite each other such that one of the sensing units is disposed on the other sensing unit. The molded body has a cavity surrounded by the magnetic force detectors.
    Type: Grant
    Filed: October 21, 2010
    Date of Patent: January 28, 2014
    Assignee: Aisan Kogyo Kabushiki Kaisha
    Inventors: Tsutomu Ikeda, Katsumi Ishida, Makoto Mase, Shuji Yamamoto, Tetsuo Suzuoki, Masashi Ozeki
  • Patent number: 8614844
    Abstract: An optical scanning apparatus is configured to include a light source that emits a beam of light, and a scanning device that scans the beam of light in two axial directions that are mutually substantially perpendicular at a first frequency fH and a second frequency fL. The scanning device calculates the first frequency fH and the second frequency fL by using predetermined mathematical formulas, and scans the beam of light at the calculated first frequency fH and second frequency fL.
    Type: Grant
    Filed: May 15, 2012
    Date of Patent: December 24, 2013
    Assignee: Panasonic Corporation
    Inventors: Yuta Yamamoto, Shinsuke Nakazono, Tsutomu Ikeda
  • Publication number: 20130063137
    Abstract: A rotational angle detection device may include a sensor wiring member and a motor wiring member. Each of the sensor wiring member and the motor wiring member includes a terminal body section and a connector section that are formed separately from each other and are electrically connected to each other via a connection structure.
    Type: Application
    Filed: September 14, 2012
    Publication date: March 14, 2013
    Applicant: AISAN KOGYO KABUSHIKI KAISHA
    Inventors: Tsutomu IKEDA, Masashi KISHI, Yuichi NISHIDA, Fusatomo MIYAKE, Tatsuhisa MATSUDA, Hiroki SHIMOTO, Makoto MASE
  • Publication number: 20120293850
    Abstract: An optical scanning apparatus is configured to include a light source that emits a beam of light, and a scanning device that scans the beam of light in two axial directions that are mutually substantially perpendicular at a first frequency fH and a second frequency fL. The scanning device calculates the first frequency fH and the second frequency fL by using predetermined mathematical formulas, and scans the beam of light at the calculated first frequency fH and second frequency fL.
    Type: Application
    Filed: May 15, 2012
    Publication date: November 22, 2012
    Inventors: Yuta YAMAMOTO, Shinsuke NAKAZONO, Tsutomu IKEDA
  • Publication number: 20120032670
    Abstract: A rotational angle sensor and a method for manufacturing the same, and a throttle control device with a rotational angle sensor, which may lower the cost, are provided. The rotational angle sensor includes each sensor IC for detecting a rotational angle of a rotor based on a magnetic field generated between a pair of magnets respectively disposed across the rotational axis of the rotor; each main terminal connected with each connection terminal of each sensor IC; and a holder member for holding each sensor IC and connection portions of each main terminal on each sensor side. A sensor assembly is constructed to form the sensor ICs the main terminals and the holder member into an assembly. A potting material is potted into the holder member.
    Type: Application
    Filed: September 15, 2011
    Publication date: February 9, 2012
    Inventors: Tsutomu Ikeda, Yoshihiro Sakuma, Masaharu Nagasaka, Koji Yoshikawa, Kazumasa Nakashima
  • Publication number: 20110260719
    Abstract: A rotational angle sensor has a molded body made of a resin and having a substantial cylinder shape with a center axis, and a conversion IC buried in the molded body and having a magnetic sensing portion, a computing portion and leads connecting the magnetic sensing portion with the computing portion. The magnetic sensing portion is disposed nearly perpendicular to the center axis of the molded body. The leads are bent such that the computing portion is disposed parallel to the center axis of the molded body and that a connection between one of the lead and the computing portion is positioned closer to the center axis of the molded body than a radially outer end of the lead.
    Type: Application
    Filed: April 19, 2011
    Publication date: October 27, 2011
    Applicant: AISAN KOGYO KABUSHIKI KAISHA
    Inventors: Makoto MASE, Tsutomu IKEDA
  • Patent number: 8044659
    Abstract: A rotational angle sensor and a method for manufacturing the same, and a throttle control device with a rotational angle sensor, which may lower the cost, are provided. The rotational angle sensor includes each sensor IC 50(1), 50(2) for detecting a rotational angle of a rotor based on a magnetic field generated between a pair of magnets respectively disposed across the rotational axis of the rotor; each main terminal 61, 62, 63, 64 connected with each connection terminal 55, 56, 57 of each sensor IC 50(1), 50(2); and a holder member 90 for holding each sensor IC 50(1), 50(2) and connection portions of each main terminal 61, 62, 63, 64 on each sensor IC 50(1), 50(2) side. A sensor assembly 100 is constructed to form the sensor ICs 50(1), 50(2), the main terminals 61, 62, 63, 64 and the holder member 90 into an assembly. A potting material 102 is potted into the holder member 90.
    Type: Grant
    Filed: January 28, 2005
    Date of Patent: October 25, 2011
    Assignee: Aisan Kogyo Kabushiki Kaisha
    Inventors: Tsutomu Ikeda, Yoshihiro Sakuma, Masaharu Nagasaka, Koji Yoshikawa, Kazumasa Nakashima
  • Patent number: 7957945
    Abstract: An inundation simulation program and device using the same for displaying a map, receiving input from a user indicating a starting point and an ending point in a bank breakage section on the map, and displaying on the map a line connecting the starting point and the ending point. Further, the computer program and device calculates a direction of a flow quantity in the bank breakage section by calculating a normal line to the side of the inside area of the bank at the input band breakage section and making the bank breakage section discrete in the calculation grids of the inundation simulation.
    Type: Grant
    Filed: March 22, 2007
    Date of Patent: June 7, 2011
    Assignee: Hitachi Engineering & Services Co., Ltd.
    Inventors: Satoshi Yamaguchi, Kazuaki Iwamura, Tsutomu Ikeda
  • Patent number: 7946555
    Abstract: The present invention includes a rotational angle sensor having a magnetic detection device. The magnetic detection device includes a sensing section that can detect a change of a magnetic field produced by at least two magnets attached to a rotary member. A housing member is molded integrally with the magnetic detection device and a support member. The support member may serves as a protective member for protecting at least the sensing section of the magnetic detection device or may serve as a positioning member configured to enable at least the sensing section to be positioned relative to the positioning member.
    Type: Grant
    Filed: November 5, 2007
    Date of Patent: May 24, 2011
    Assignee: Aisan Kogyo Kabushiki Kaisha
    Inventor: Tsutomu Ikeda
  • Publication number: 20110094474
    Abstract: Angle sensor device has magnetic force detectors detecting alternation of magnetic force caused by rotation of a throttle gear. The magnetic force detectors are buried in a molded body of the angle sensor device constructed of foamed resin. The magnetic force detectors each has a sensing unit detecting alteration of magnetic force and a computing unit computing based on signals from the sensing unit and outputting signals depending on the alteration of magnetic force and is formed in L-shape. Two of the magnetic force detectors are placed opposite each other such that one of the sensing units is disposed on the other sensing unit. The molded body has a cavity surrounded by the magnetic force detectors.
    Type: Application
    Filed: October 21, 2010
    Publication date: April 28, 2011
    Applicant: Aisan Kogyo Kabushiki Kaisha
    Inventors: Tsutomu IKEDA, Katsumi ISHIDA, Makoto MASE, Shuji YAMAMOTO, Tetsuo SUZUOKI, Masashi OZEKI
  • Patent number: 7859252
    Abstract: A rotational angle detecting device has a pair of permanent magnets and an angle sensor. Electrical connecting terminals are connected to the angle sensor and further connected to conductors. The conductors have seconds ends opposite to the first ends and serving as connector terminals of the connector. In one embodiment, the rotational angle detecting device includes a first resin-molded portion and a second resin-molded portion. The first resin-molded portion includes at least the electrical connecting terminals, a part of the angle sensor and the first ends of the conductors embedded within a first resin. The second resin-molded portion includes portions of the conductors embedded within a second resin. In another embodiment, capacitors are connected to the connector conductors. The angle sensor has a magnetic detecting element positioned substantially perpendicularly to the rotational axis of the rotary section.
    Type: Grant
    Filed: June 28, 2007
    Date of Patent: December 28, 2010
    Assignee: Aisan Kogyo Kabushiki Kaisha
    Inventor: Tsutomu Ikeda
  • Patent number: 7834842
    Abstract: A particle movement-type display apparatus is constituted by a pixel portion, a peripheral area around the pixel portion, and particles. At least a part of the peripheral area around the pixel portion is provided with a recess portion capable of accommodating a part of the particles therein.
    Type: Grant
    Filed: June 3, 2005
    Date of Patent: November 16, 2010
    Assignee: Canon Kabushiki Kaisha
    Inventors: Tsutomu Ikeda, Takehiko Soda