Patents by Inventor Hiroyasu Ishihara

Hiroyasu Ishihara 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).

  • Publication number: 20060199371
    Abstract: A semiconductor device includes a substrate and wirings located on the substrate. A passivation film including a first insulating film containing an impurity is located on the wirings. The first insulating film is formed from silicon oxide film materials containing greater than one percent carbon.
    Type: Application
    Filed: May 19, 2006
    Publication date: September 7, 2006
    Applicant: SANYO ELECTRIC CO., LTD.
    Inventors: Hideki Mizuhara, Yasunori Inoue, Hiroyuki Watanabe, Masaki Hirase, Kaori Misawa, Hiroyuki Aoe, Kimihide Saito, Hiroyasu Ishihara
  • Publication number: 20010048147
    Abstract: A semiconductor device includes a substrate and wirings located on the substrate. A passivation film including a first insulating film containing an impurity is located on the wirings. The first insulating film is formed from silicon oxide film materials containing greater than one percent carbon.
    Type: Application
    Filed: March 9, 1998
    Publication date: December 6, 2001
    Inventors: HIDEKI MIZUHARA, YASUNORI INOUE, HIROYUKI WATANABE, MASAKI HIRASE, KAORI MISAWA, HIROYUKI AOE, KIMIHIDE SAITO, HIROYASU ISHIHARA
  • Patent number: 6150725
    Abstract: An enclosure is formed on a substrate of a semiconductor device surrounding a bonding pad, such that a groove is formed between the enclosure and the bonding pad. An insulating film is formed over the substrate, including the enclosure and the groove. The groove and the film prevent moisture and contaminants from seeping into the semiconductor device.
    Type: Grant
    Filed: February 25, 1998
    Date of Patent: November 21, 2000
    Assignee: Sanyo Electric Co., Ltd.
    Inventors: Kaori Misawa, Hiroyasu Ishihara, Hideki Mizuhara
  • Patent number: 5984038
    Abstract: A vehicle having a man power driving system in which a driving force by man power is applied through a gear change mechanism to rotate a wheel, an a motor driving system in which the wheel is rotated by a driving force of a motor. The man power driving system is equipped with a torque detector for detecting a man power driving force so as to drive the motor according to a magnitude of the man power driving force detected by the turque detector. A particularly durable gear change mechanism is not required, and thus a common gear change mechanism for bicycle can be used, thereby simplifying construction.
    Type: Grant
    Filed: August 14, 1996
    Date of Patent: November 16, 1999
    Assignee: Sanyo Electric Co., Ltd.
    Inventors: Masakatsu Fujiwara, Masaru Tanaka, Tatsuaki Tanaka, Hiroyasu Ishihara, Toshihiro Suhara, Kazuhisa Matsumoto
  • Patent number: 5039622
    Abstract: There are disclosed a structure and a manufacturing method of a MOS-type thin-film field effect transistor composed of a substrate having an insulating main surface, a gate electrode formed on the insulating main surface to have an upper surface and a side surface at its edge, an insulating film covering at least the upper and side surfaces of the gate electrode, a semiconductor film having three continuous first, second and third portions, the first portion positioned above the upper surface of the gate electrode, the second portion being formed in contact with the insulator film at the side surface of the gate electrode and the third portion positioned above the substrate without interposing the gate electrode, a side-wall insulator formed on a part of the third portion of the semiconductor film and having a side surface contacting the second portion of the semiconductor film, and source and drain regions formed by introducing impurity atoms into the first portion and another part of the third portion of th
    Type: Grant
    Filed: October 31, 1990
    Date of Patent: August 13, 1991
    Assignee: NEC Corporation
    Inventor: Hiroyasu Ishihara
  • Patent number: 5001540
    Abstract: There are disclosed a structure and a manufacturing method of a MOS-type thin-film field effect transistor composed of a substrate having an insulating main surface, a gate electrode formed on the insulating main surface to have an upper surface and a side surface at its edge, an insulating film covering at least the upper and side surfaces of the gate electrode, a semiconductor film having three continuous first, second and third portions, the first portion positioned above the upper surface of the gate electrode, the second portion being formed in contact with the insulator film at the side surface of the gate electrode and the third portion positioned above the substrate without interposing the gate electrode, a side-wall insulator formed on a part of the third portion of the semiconductor film and having a side surface contacting the second portion of the semiconductor film, and source and drain regions formed by introducing impurity atoms into the first portion and another part of the third portion of th
    Type: Grant
    Filed: March 13, 1989
    Date of Patent: March 19, 1991
    Assignee: NEC Corporation
    Inventor: Hiroyasu Ishihara