Patents by Inventor Shigeru Takeyama

Shigeru Takeyama 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: 6838743
    Abstract: This invention relates an optoelectronic material comprising a uniform medium with a controllable electric characteristic; and semiconductor ultrafine particles dispersed in the medium and having a mean particle size of 100 nm or less, and an application device using the same.
    Type: Grant
    Filed: February 25, 2003
    Date of Patent: January 4, 2005
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Yuka Yamada, Takehito Yoshida, Shigeru Takeyama, Yuji Matsuda, Katsuhiko Mutoh
  • Patent number: 6730934
    Abstract: This invention relates an optoelectronic material comprising a uniform medium with a controllable electric characteristic; and semiconductor ultrafine particles dispersed in the medium and having a mean particle size of 100 nm or less, and an application device using the same.
    Type: Grant
    Filed: November 30, 2000
    Date of Patent: May 4, 2004
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Yuka Yamada, Takehito Yoshida, Shigeru Takeyama, Yuji Matsuda, Katsuhiko Mutoh
  • Patent number: 6607213
    Abstract: The present invention relates to a gas generator for an air bag apparatus mounted in a vehicle or the like for protecting an occupant in the vehicle by charging gas into the air bag interposed between the occupant and a vehicle member at the time of collision of the vehicle. The gas generator for the air bag of the present invention comprises a first chamber (9) accommodating a flammable fluid (7) having a first vent opening (8) which is in communication with the air bag (3), a second chamber (5) accommodating the flammable fluid (7) and having a volume greater than that of the first chamber (9), a first occluding member (31) for occluding the first vent opening (8), and an ignition device (14) for igniting the flammable fluid (7) in the first chamber (9). By burning at least a portion of the flammable fluid (7) in the first chamber (9), the fluid in the first chamber (9) and the second chamber (5) is discharged out through the first vent opening (8), thereby inflating the air bag (3).
    Type: Grant
    Filed: October 21, 1999
    Date of Patent: August 19, 2003
    Assignees: Matsushita Electric Industrial Co., Ltd., Miyata Industry Co., Ltd.
    Inventors: Kiyoshi Yamamori, Takuhiro Ono, Yoshikazu Kawauchi, Shigeru Takeyama, Norimasa Eto, Hiroyuki Takahashi, Yasushi Usui
  • Publication number: 20030151107
    Abstract: This invention relates an optoelectronic material comprising a uniform medium with a controllable electric characteristic; and semiconductor ultrafine particles dispersed in the medium and having a mean particle size of 100 nm or less, and an application device using the same.
    Type: Application
    Filed: February 25, 2003
    Publication date: August 14, 2003
    Applicant: Matsushita Electric Industrial Co., Ltd.
    Inventors: Yuka Yamada, Takehito Yoshida, Shigeru Takeyama, Yuji Matsuda, Katsuhiko Mutoh
  • Publication number: 20020038948
    Abstract: The present invention relates to a gas generator for an air bag apparatus mounted in a vehicle or the like for protecting an occupant in the vehicle by charging gas into the air bag interposed between the occupant and a vehicle member at the time of collision of the vehicle. The gas generator for the air bag of the present invention comprises a first chamber (9) accommodating a flammable fluid (7) and having a first vent opening (8) which is in communication with the air bag (3), a second chamber (5) accommodating the flammable fluid (7) and having a volume greater than that of the first chamber (9), a first occluding member (31) for occluding the first vent opening (8), and ignition means (14) for igniting the flammable fluid (7) in the first chamber (9). By burning at least a portion of the flammable fluid (7) in the first chamber (9), the fluid in the first chamber (9) and the second chamber (5) is discharged out through the first vent opening (8), thereby inflating the air bag (3).
    Type: Application
    Filed: October 21, 1999
    Publication date: April 4, 2002
    Applicant: Kiyoshi Yamamori
    Inventors: KIYOSHI YAMAMORI, TAKUHIRO ONO, YOSHIKAZU KAWAUCHI, SHIGERU TAKEYAMA, NORIMASA ETO, HIROYUKI TAKAHASHI, YASUSHI USUI
  • Patent number: 6328336
    Abstract: A gas generating apparatus for an air bag apparatus mounted in a vehicle or the like for introducing a gas into an air bag to inflate the same for protecting a passenger in the vehicle. The gas generating apparatus for the air bag apparatus according to the present invention ignites and burns a combustible fluid to increase its temperature to increase its pressure for inflating an air bag. The gas generating apparatus for the air bag apparatus includes accommodating device (5) and (9) each for accommodating a combustible fluid (7), a vent opening provided in one of the accommodating device (9), and an occluding member (13) having an igniting portion (14) directed inward of the accommodating device (9). A pressure in the accommodating device is increased by burning the combustible fluid to reliably break the occluding member so that a combustion fluid mixture can effectively and swiftly be supplied to the air bag.
    Type: Grant
    Filed: December 15, 1997
    Date of Patent: December 11, 2001
    Assignees: Matsushita Electric Industrial Co., Ltd., Miyata Industry Co., Ltd.
    Inventors: Hiroyuki Takahashi, Hideo Nomura, Kiyoshi Yamamori, Shigeru Takeyama, Takuhiro Ono, Yoshikazu Kawauchi
  • Patent number: 6239453
    Abstract: This invention relates an optoelectronic material comprising a uniform medium with a controllable electric characteristic; and semiconductor ultrafine particles dispersed in the medium and having a mean particle size of 100 nm or less, and an application device using the same.
    Type: Grant
    Filed: February 18, 1998
    Date of Patent: May 29, 2001
    Assignees: Matsushita Electric Industrial Co., Ltd., Matsushita Electronics Corporation
    Inventors: Yuka Yamada, Takehito Yoshida, Shigeru Takeyama, Yuji Matsuda, Katsuhiko Mutoh
  • Publication number: 20010000335
    Abstract: This invention relates an optoelectronic material comprising a uniform medium with a controllable electric characteristic; and semiconductor ultrafine particles dispersed in the medium and having a mean particle size of 100 nm or less, and an application device using the same.
    Type: Application
    Filed: November 30, 2000
    Publication date: April 19, 2001
    Applicant: Matsushita Electric Industrial Co.
    Inventors: Yuka Yamada, Takehito Yoshida, Shigeru Takeyama, Yuji Matsuda, Katsuhiko Mutoh
  • Patent number: 6168201
    Abstract: The present invention relates to a gas generating apparatus for an air bag apparatus mounted in a vehicle or the like for protecting a passenger of the vehicle by charging a gas into an air bag interposed between the passenger and an interior member of the vehicle chamber so as to inflate the air bag at the time of collision of the vehicle. The gas generating apparatus for the air bag apparatus includes a first chamber 9 which accommodates a combustible fluid 7 and which is provided with a first vent opening 8 leading to the air bag 3; a second chamber 5 larger than the first chamber 9; a first occluding member 13 for occluding the first vent opening 8; and an ignition device 14 for igniting the combustible fluid in the first chamber 9. By burning at least a portion of the combustible fluid 7 within the first chamber 9, the fluid in the first and second chambers 9 and 5 is discharged through the first vent opening 8 to inflate the air bag 3.
    Type: Grant
    Filed: January 2, 1998
    Date of Patent: January 2, 2001
    Assignees: Matsushita Electric Industrial, Miyata Industry Co., Ltd.
    Inventors: Shigeru Takeyama, Takuhiro Ono, Yoshikazu Kawauchi, Kiyoshi Yamamori, Norimasa Eto, Hiroyuki Takahashi, Mitsugu Tsuyuki, Yasushi Usui
  • Patent number: 6073665
    Abstract: A charging method of a combustible gas and an oxidizer gas includes the steps of charging the combustible gas, and charging the oxidizer gas, both into a container through a charging port provided to the container. During at least one of two charging steps, a composition of a combustible mixed gas created in the vicinity of the charging port is controlled in a nonflammable range.
    Type: Grant
    Filed: June 16, 1999
    Date of Patent: June 13, 2000
    Assignees: Matsushita Electric Industrial Co., Ltd., Miyata Industry Co., Ltd.
    Inventors: Shigeru Takeyama, Takuhiro Ono, Yoshikazu Kawauchi, Kiyoshi Yamamori, Hiroyuki Takahashi, Takuro Koyama, Mitsugu Tsuyuki, Yasushi Usui
  • Patent number: 5937917
    Abstract: A charging structure of a combustible gas and an oxidizer gas includes a container for containing the combustible and oxidizer gases therein. The container has a charging port for charging the combustible and oxidizer gases. The charging structure also includes a sealing member for sealing the charging port and a separating member for substantially separating the combustible gas and the oxidizer gas at least in the vicinity of the charging port during a predetermined time period beginning, from a time point after charging of the combustible and oxidizer gases into the container through the charging port to a time point when the charging port is sealed by the sealing member. The separating member defines a flow path such that the combustible gas and the oxidizer gas are not substantially mixed therein during the predetermined time period in such a case where one of the combustible and oxidizer gases is first charged and thereafter the other of the combustible and oxidizer gases is charged.
    Type: Grant
    Filed: June 11, 1997
    Date of Patent: August 17, 1999
    Assignees: Matsushita Electric Industrial Co., Ltd., Miyata Industry Co., Ltd.
    Inventors: Shigeru Takeyama, Takuhiro Ono, Yoshikazu Kawauchi, Kiyoshi Yamamori, Hiroyuki Takahashi, Takuro Koyama, Mitsugu Tsuyuki, Yasushi Usui