Patents by Inventor Tsutomu Yasuda

Tsutomu Yasuda 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: 12206207
    Abstract: Provided is a power transmission device with which it is possible to minimize transmission of an excessive external force. This power transmission device has an input lever, an output lever, and a housing that are capable of moving relative to each other and that are mechanically connected to each other so as to be capable of transmitting power therebetween. The power transmission device has: a main spring disposed on a first power transmission path that is for transmitting power between the input lever and the output lever; a return spring disposed on a second power transmission path that is for transmitting power between the input lever and the housing; and a damper disposed on a third power transmission path that is for transmitting power between the output lever and the housing.
    Type: Grant
    Filed: May 21, 2020
    Date of Patent: January 21, 2025
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Atsushi Matsunaga, Toshiya Seki, Junji Yasuda, Tsutomu Takahashi, Takashi Matsumoto
  • Publication number: 20230182223
    Abstract: A brazing method for brazing a first stainless steel base material that contains a metal that is more susceptible to oxidation than Cr and a second stainless steel base material that does not substantially contain the metal that is more susceptible to oxidation than Cr to each other is provided. Furthermore, a product containing a first stainless steel base material that contains a metal that is more susceptible to oxidation than Cr and a second stainless steel base material that does not substantially contain the metal that is more susceptible to oxidation than Cr, which are brazed to each other, is provided.
    Type: Application
    Filed: December 9, 2022
    Publication date: June 15, 2023
    Inventor: Tsutomu YASUDA
  • Patent number: 9336802
    Abstract: The embodiments disclosed generally relate to a magnetic recording head having three magnetoresistive effect elements. The structure comprises a first magnetoresistive effect element on a lower magnetic shield layer. Additionally, two lower electrodes are disposed on the two sides of the first magnetoresistive effect element. A second magnetoresistive effect element is disposed on a lower electrode while a third magnetoresistive effect element on another lower electrode. An upper magnetic shield layer is disposed between the second magnetoresistive effect element and the third magnetoresistive effect element. The upper magnetic shield also serves as an electrode of the first magnetoresistive effect element.
    Type: Grant
    Filed: June 18, 2015
    Date of Patent: May 10, 2016
    Assignee: HGST Netherlands B.V.
    Inventors: Hideki Mashima, Nobuo Yoshida, Iwata Norihiro, Tsutomu Yasuda
  • Publication number: 20150287427
    Abstract: The embodiments disclosed generally relate to a magnetic recording head having three magnetoresistive effect elements. The structure comprises a first magnetoresistive effect element on a lower magnetic shield layer. Additionally, two lower electrodes are disposed on the two sides of the first magnetoresistive effect element. A second magnetoresistive effect element is disposed on a lower electrode while a third magnetoresistive effect element on another lower electrode. An upper magnetic shield layer is disposed between the second magnetoresistive effect element and the third magnetoresistive effect element. The upper magnetic shield also serves as an electrode of the first magnetoresistive effect element.
    Type: Application
    Filed: June 18, 2015
    Publication date: October 8, 2015
    Inventors: Hideki MASHIMA, Nobuo YOSHIDA, Iwata NORIHIRO, Tsutomu YASUDA
  • Publication number: 20150221329
    Abstract: The embodiments disclosed generally relate to a magnetic recording head having three magnetoresistive effect elements. The structure comprises a first magnetoresistive effect element on a lower magnetic shield layer. Additionally, two lower electrodes are disposed on the two sides of the first magnetoresistive effect element. A second magnetoresistive effect element is disposed on a lower electrode while a third magnetoresistive effect element on another lower electrode. An upper magnetic shield layer is disposed between the second magnetoresistive effect element and the third magnetoresistive effect element. The upper magnetic shield also serves as an electrode of the first magnetoresistive effect element.
    Type: Application
    Filed: February 5, 2014
    Publication date: August 6, 2015
    Applicant: HGST NETHERLANDS B.V.
    Inventors: Hideki MASHIMA, Nobuo YOSHIDA, Iwata NORIHIRO, Tsutomu YASUDA
  • Patent number: 9082436
    Abstract: The embodiments disclosed generally relate to a magnetic recording head having three magnetoresistive effect elements. The structure comprises a first magnetoresistive effect element on a lower magnetic shield layer. Additionally, two lower electrodes are disposed on the two sides of the first magnetoresistive effect element. A second magnetoresistive effect element is disposed on a lower electrode while a third magnetoresistive effect element on another lower electrode. An upper magnetic shield layer is disposed between the second magnetoresistive effect element and the third magnetoresistive effect element. The upper magnetic shield also serves as an electrode of the first magnetoresistive effect element.
    Type: Grant
    Filed: February 5, 2014
    Date of Patent: July 14, 2015
    Assignee: HGST NETHERLANDS B.V.
    Inventors: Hideki Mashima, Nobuo Yoshida, Iwata Norihiro, Tsutomu Yasuda
  • Patent number: 8786988
    Abstract: A magnetic sensor having reduced read gap thickness, reduced signal noise and improved signal to noise ratio. The sensor includes a sensor stack and hard bias structures formed at either side of the sensor stack for biasing the free layer of the sensor. A protective layer is formed over a portion of the hard bias structure, however a portion of the hard bias structure extends upward toward the upper shield and is disposed between the protective layer and the sensor stack as a result of the process used to form the magnetic bias structure. This portion of the hard bias structure that extends toward the upper shield has a reduced magnetization relative to the rest of the hard bias structure so that it will not magnetically couple with the upper shield.
    Type: Grant
    Filed: May 15, 2012
    Date of Patent: July 22, 2014
    Assignee: HGST Netherlands B.V.
    Inventors: Hideki Mashima, Nobuo Yoshida, Takahiro Ibusuki, Tsutomu Yasuda
  • Publication number: 20130308228
    Abstract: A magnetic sensor having reduced read gap thickness, reduced signal noise and improved signal to noise ratio. The sensor includes a sensor stack and hard bias structures formed at either side of the sensor stack for biasing the free layer of the sensor. A protective layer is formed over a portion of the hard bias structure, however a portion of the hard bias structure extends upward toward the upper shield and is disposed between the protective layer and the sensor stack as a result of the process used to form the magnetic bias structure. This portion of the hard bias structure that extends toward the upper shield has a reduced magnetization relative to the rest of the hard bias structure so that it will not magnetically couple with the upper shield.
    Type: Application
    Filed: May 15, 2012
    Publication date: November 21, 2013
    Applicant: Hitachi Global Storage Technologies Netherlands B.V.
    Inventors: Hideki Mashima, Nobuo Yoshida, Takahiro Ibusuki, Tsutomu Yasuda
  • Patent number: 8339752
    Abstract: In one embodiment, a magnetic head includes a magnetoresistive free layer, wherein a width of the free layer nearest an air bearing surface (ABS) is less than a width of the free layer at a point away from the ABS in a track width direction, with the magnetic head being configured to pass a sense current in a direction perpendicular to a plane of deposition of the free layer. In another embodiment, a method includes forming a magnetoresistive film above a shield, forming a masking layer above the magnetoresistive film, patterning the masking layer such that it exposes portions of the magnetoresistive film, wherein the masking layer defines an area which is narrow near an area that forms an ABS side of a free layer and wider at an area away from the ABS, and removing the exposed portions of the magnetoresistive film to form the free layer.
    Type: Grant
    Filed: September 26, 2011
    Date of Patent: December 25, 2012
    Assignee: Hitachi Global Storage Technologies Netherlands B.V.
    Inventors: Masashi Hattori, Koichi Nishioka, Koji Sakamoto, Tsutomu Yasuda, Hideki Mashima
  • Patent number: 6837910
    Abstract: A gasifying apparatus comprises a gasifier, a reformer and a heating device. The gasifier produces a thermal decomposed gas with use of a thermal decomposition reaction of a liquid or solid fuel such as waste or coal, and the heating device heats a low-temperature steam and air so as to be a high-temperature steam and air, which have a temperature equal to or higher than 700 deg. C. The gasifying apparatus has feeding means including fluid passages for feeding the high-temperature steam and air to the gasifier and the reformer. In a thermal decomposition area of the gasifier, the liquid or solid fuel is thermally decomposed to produce the thermal decomposed gas with sensible heat of the high-temperature steam and air and with the heat generated by an exothermic oxidation reaction between the high-temperature air and the liquid or solid fuel. In the reformer, the thermal decomposed gas is reformed in the existence of the high-temperature steam so as to be a high-temperature syngas.
    Type: Grant
    Filed: September 19, 2000
    Date of Patent: January 4, 2005
    Assignees: Japan Science and Technology Agency, Nippon Furnace Kogyo Kaisha, Ltd., Ishikawajima-Harima Heavy Industries Co., Ltd.
    Inventors: Kunio Yoshikawa, Tsutomu Yasuda, Masaru Sakai, Toru Ishii
  • Patent number: 6718813
    Abstract: In a pipe rack forming method, in a state of holding a pipe forming body by a holding portion in a holding metal mold, at a time of pressing a flat surface portion of the pipe forming body by tooth bottom forming surfaces of respective stages of tooth profile portions in a tooth profile metal mold, the structure is made such as to sequentially employ the tooth profile portions in which a tooth bottom height applied to the flat surface portion is reduced in sequence for the tooth profile portions in the tooth profile metal mold, repeatedly pressing and moving forward and backward mandrels having the same size to an inner periphery of the pipe forming body every time when the respective stages of tooth profile portions in the tooth profile metal mold press the flat surface portion, and forming a rack tooth having a final tooth profile.
    Type: Grant
    Filed: May 23, 2002
    Date of Patent: April 13, 2004
    Assignee: Showa Corporation
    Inventors: Tsutomu Yasuda, Masato Ishikawa, Yoshihisa Mikami
  • Patent number: 6659243
    Abstract: In a shaft seal part structure of a hydraulic shock absorber, a diameter of an upper portion of the outer cylinder is reduced toward the tubular portion of the oil seal, and the diameter reduced portion of the outer cylinder presses the tubular portion of the oil seal downward, thereby holding the inner cylinder, the rod guide and the oil seal in an inner portion of the outer cylinder.
    Type: Grant
    Filed: March 7, 2002
    Date of Patent: December 9, 2003
    Assignee: Showa Corporation
    Inventor: Tsutomu Yasuda
  • Publication number: 20030024780
    Abstract: In a shaft seal part structure of a hydraulic shock absorber, a diameter of an upper portion of the outer cylinder is reduced toward the tubular portion of the oil seal, and the diameter reduced portion of the outer cylinder presses the tubular portion of the oil seal downward, thereby holding the inner cylinder, the rod guide and the oil seal in an inner portion of the outer cylinder.
    Type: Application
    Filed: March 7, 2002
    Publication date: February 6, 2003
    Inventor: Tsutomu Yasuda
  • Patent number: 6488076
    Abstract: A heating apparatus for heating supply of gaseous fluid 1 heats a relatively low temperature gaseous fluid and feeds a heated supply flow to a high temperature gaseous fluid introduction equipment. The heating apparatus has heat exchangers 11, 12 provided with fluid passages through which the low temperature fluid flow passes, a splitting area 15 for dividing a heated supply flow H of gaseous fluid, which is heated by the heat exchanger, into first and second heated gaseous streams H1, H2, and combustion areas 13, 14 in which a combustion reaction of combustible matter takes place in the existence of the first heated gaseous stream. The heated supply flow or the first stream is introduced into the combustion area and the combustible matter is fed thereto, and the combustion area causes the combustion reaction of combustible matter in the existence of the heated supply flow or the first stream. Hot gas produced by the combustion reaction is exhausted through the heat exchanger.
    Type: Grant
    Filed: July 6, 1999
    Date of Patent: December 3, 2002
    Assignee: Nippon Furnace Kogyo Kaisha, Ltd.
    Inventors: Tsutomu Yasuda, Kunio Yoshikawa
  • Publication number: 20020174702
    Abstract: In a pipe rack forming method, in a state of holding a pipe forming body by a holding portion in a holding metal mold, at a time of pressing a flat surface portion of the pipe forming body by tooth bottom forming surfaces of respective stages of tooth profile portions in a tooth profile metal mold, the structure is made such as to sequentially employ the tooth profile portions in which a tooth bottom height applied to the flat surface portion is reduced in sequence for the tooth profile portions in the tooth profile metal mold, repeatedly pressing and moving forward and backward mandrels having the same size to an inner periphery of the pipe forming body every time when the respective stages of tooth profile portions in the tooth profile metal mold press the flat surface portion, and forming a rack tooth having a final tooth profile.
    Type: Application
    Filed: May 23, 2002
    Publication date: November 28, 2002
    Inventors: Tsutomu Yasuda, Masato Ishikawa, Yoshihisa Mikami
  • Patent number: 5997292
    Abstract: According to the present invention, gas which contains no impurities and has a high temperature of approximately 700 to 1400.degree. C. can be supplied for a long period with a short preparation time, and fluctuation in the temperature during supply can be reduced.
    Type: Grant
    Filed: February 6, 1997
    Date of Patent: December 7, 1999
    Assignee: Nippon Furnace Kogyo Kabushiki Kaisha
    Inventors: Ryoichi Tanaka, Toshiaki Hasegawa, Jun Sudo, Tsutomu Yasuda, Yukio Mizutani, Masashi Katsuki, Hiroshige Ikebe, deceased
  • Patent number: 5848885
    Abstract: A regenerative heat exchange system performs heat exchange by alternately passing combustion exhaust gas as high-temperature fluid and combustion air as low-temperature fluid through a fixed regenerator. A regenerative burner carries out combustion using preheated air from the exchange system. The regenerative heat system comprises: a permeable regenerator partitioned into three or more chambers in the circumferential direction; a double-pipe outlet/inlet partitioned into a supply chamber and an exhaust chamber; and changeover member which isolates the regenerator from the outlet/inlet and by which the regenerator selectively communicates with the outlet/inlet by a supply communicating hole and an exhaust communicating hole which are provided with such a positional relation that the supply communicating hole and the exhaust communicating hole do not simultaneously lie in any of the partitioned chambers.
    Type: Grant
    Filed: May 22, 1996
    Date of Patent: December 15, 1998
    Assignee: Nippon Furnace Kogyo Kabushiki Kaisha
    Inventors: Ryoichi Tanaka, Mamoru Matsuo, Tsutomu Yasuda
  • Patent number: 5722281
    Abstract: An automobile steering rack manufacturing apparatus has a material clamp for holding a hollow pipe-like rack material that has a solid core bar inserted therein. A forming roll on the apparatus has an outer periphery with rack teeth formed thereon, while a material drive causes a mutual rolling of the material clamp and the forming roll, thereby cutting rack teeth into the material. The clamp moves in the tangential direction of the forming roll orientation, and a tooth depth controller controls the distance between the rack material held in the material clamp, and the forming roll.
    Type: Grant
    Filed: December 13, 1995
    Date of Patent: March 3, 1998
    Assignee: Showa Corporation
    Inventors: Tsutomu Yasuda, Jun Minamoto
  • Patent number: 5628222
    Abstract: A method of forming a hollow pipe-like rack material with rack teeth by causing mutual movement of the rack material and a forming roll is disclosed. A core bar is inserted inside the pipe-like material where the sectional profile of the core bar has a material support surface that is spaced apart from rack teeth formation portion of the rack material; the material support surface being raised.
    Type: Grant
    Filed: November 17, 1995
    Date of Patent: May 13, 1997
    Assignee: Showa Corporation
    Inventors: Tsutomu Yasuda, Jun Minamoto
  • Patent number: 4593701
    Abstract: A catheter-tip micromanometer includes a photoelastic element, with the photoelastic element changing light propagation constants of two axes perpendicular to each other in response to blood pressure level and direction to which blood pressure is applied. Light is propagated through the photoelastic element at a prescribed angle with regard to the two axes thereof perpendicular to each other by means of a single polarization optical fiber which maintains a plane of polarization whereby blood pressure is measured on the basis of a difference between propagation velocities in two axial directions obtained during the propagation.
    Type: Grant
    Filed: August 22, 1984
    Date of Patent: June 10, 1986
    Assignee: Hitachi Cable, Ltd.
    Inventors: Kenji Kobayashi, Tsutomu Yasuda, Hiroshi Matsumoto, Humiki Sone