Patents by Inventor Tsutomu Sugahara

Tsutomu Sugahara 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).

  • Air bag device
    Patent number: 7431329
    Abstract: Expansion of an air bag can be smoothly effected even in a small space by controlling the air bag in thickness and introduction of the gas for expansion, and the protection of an occupant can be rapidly implemented with a relatively small volume of the gas.
    Type: Grant
    Filed: June 24, 2005
    Date of Patent: October 7, 2008
    Assignees: Mazda Motor Corporation, Ashimori Industry Co., Ltd.
    Inventors: Seigo Taguchi, Katsuyoshi Ishigame, Tsutomu Sugahara, Naoki Yamaji, Hidetaka Azuma
  • Airbag device for vehicle
    Publication number: 20060267318
    Abstract: An inflatable airbag, which inflates and comes out from a side portion of a seat back, comprises a head-protection portion and a torso-protection portion which are formed separately. A volume of the head-protection portion for protecting an occupant's head is configured to be greater than that of the torso-protection portion for protecting at least an occupant's chest. A tether connecting the both airbag portions can provide a proper forward inflation of the head-protection portion, suppressing an upward inflation of the head-protection portion. An arrangement of a vent hole or a coating layer can make an inflation sustaining period of the head-protection portion longer than that of the torso-protection portion in the inflated condition.
    Type: Application
    Filed: August 9, 2006
    Publication date: November 30, 2006
    Applicant: MAZDA MOTOR CORPORATION
    Inventors: Satoshi Nishikaji, Katsuyoshi Ishigame, Tsutomu Sugahara, Seigo Taguchi
  • Air bag device
    Publication number: 20060001244
    Abstract: Expansion of an air bag can be smoothly effected even in a small space by controlling the air bag in thickness and introduction of the gas for expansion, and the protection of an occupant can be rapidly implemented with a relatively small volume of the gas.
    Type: Application
    Filed: June 24, 2005
    Publication date: January 5, 2006
    Inventors: Seigo Taguchi, Katsuyoshi Ishigame, Tsutomu Sugahara, Naoki Yamaji, Hidetaka Azuma
  • Airbag device for vehicle
    Publication number: 20040183285
    Abstract: An inflatable airbag, which inflates and comes out from a side portion of a seat back, comprises a head-protection portion and a torso-protection portion which are formed separately. A volume of the head-protection portion for protecting an occupant's head is configured to be greater than that of the torso-protection portion for protecting at least an occupant's chest. A tether connecting the both airbag portions can provide a proper forward inflation of the head-protection portion, suppressing an upward inflation of the head-protection portion. An arrangement of a vent hole or a coating layer can make an inflation sustaining period of the head-protection portion longer than that of the torso-protection portion in the inflated condition.
    Type: Application
    Filed: January 28, 2004
    Publication date: September 23, 2004
    Applicant: MAZDA MOTOR CORPORATION
    Inventors: Satoshi Nishikaji, Katsuyoshi Ishigame, Tsutomu Sugahara, Seigo Taguchi
  • Method for optical resolution of Corey lactone diols
    Patent number: 5219743
    Abstract: The primary hydroxy group of Corey lactone diols is optically selectively acylated to obtain the desired optically active ester and/or diol. The mixture of Corey lactone diols of formulae (Ia) and (Ib): ##STR1## is reacted with an acylating agent optically selectively in the presence of an enzyme and/or a microorganism thereby to acylate, isolate and purify the primary alcohol.
    Type: Grant
    Filed: February 18, 1992
    Date of Patent: June 15, 1993
    Assignee: Nissan Chemical Industries, Ltd.
    Inventors: Seiichi Takano, Tsutomu Sugahara