Patents by Inventor Sumihiro Kaga

Sumihiro Kaga 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: 4633364
    Abstract: A static shock eliminator adapted for use in attachment to a conductive grounding object such as a metallic door knob, handle or key cylinder, which comprises a high resistance plate arranged adjacent the conductive grounding object and engaged at a portion thereof with the same. The high resistance plate has a first surface to be brought into contact with a person at a portion spaced from the conductive grounding object in a predetermined distance and a second surface to be adhered to a surface of a member on which the conductive grounding object is mounted.
    Type: Grant
    Filed: August 28, 1985
    Date of Patent: December 30, 1986
    Assignee: Nippondenso Co., Ltd.
    Inventors: Mitsuo Nakamura, Sumihiro Kaga, Toshitaka Tanahashi
  • Patent number: 4570200
    Abstract: A static discharge device for preventing an electrostatic shock comprising a conductive body to be grounded to the ground body, a resistance element contacting with the conductive body and having a resistance value to restrict a current value when the conductive body is contact with the ground body by the person, and an insulating material provided between the conductive body and the contacting portion held by the person so as to elongate a creeping distance between the conductive body and the human body.
    Type: Grant
    Filed: February 27, 1984
    Date of Patent: February 11, 1986
    Assignee: Nippondenso Co., Ltd.
    Inventors: Masahiko Osada, Akira Kuno, Takashi Yamada, Sumihiro Kaga, Mamoru Shimamoto, Toshitaka Tanahashi
  • Patent number: 4293893
    Abstract: An apparatus for controlling angular position of optical axis of a head lamp assembly for a motor vehicle. An actuator is supplied selectively with the atmospheric pressure and a negative pressure available from an intake conduit of an internal combustion engine thereby to produce corresponding mechanical displacements. A detector for detecting the angular position of the optical axis of the head lamp assembly responds to the mechanical displacements of the actuator to change-over successively the contact states of a plurality of paired electric contacts. A command unit for setting the angular position of the optical axis of the head lamp assembly is provided which includes a plurality of paired electric contacts connected in one-to-one correspondence to the paired contacts of the optical axis position detector. A signal for setting the optical axis of the head lamp assembly is produced in dependence on the contact states of the optical axis position detector.
    Type: Grant
    Filed: August 31, 1979
    Date of Patent: October 6, 1981
    Assignee: Nippondenso Co., Ltd.
    Inventors: Yoshihiko Tsuzuki, Sumihiro Kaga, Nobuhito Hobo
  • Patent number: 4015426
    Abstract: In a fuel control system of the type in which an electromagnetic valve responsive to timing pulse voltage is employed to intermittently effect the metering of the fuel, a control voltage generator generates a control voltage corresponding to a predetermined fuel metering characteristic of the engine, and a trigger signal generator triggers a timing pulse generator at a predetermined period to generate timing pulses whose time width is controllable in accordance with the control voltage to actuate an electromagnetic valve.
    Type: Grant
    Filed: August 11, 1975
    Date of Patent: April 5, 1977
    Assignee: Nippondenso Co., Ltd.
    Inventors: Nobuhito Hobo, Sumihiro Kaga
  • Patent number: 3978424
    Abstract: A two-phase pulse signal generator which includes a first triangular signal generator in the form of a closed loop oscillator, a second triangular signal generator for generating a signal which is inverted with respect to the first triangular signal and a couple of comparators for comparing the respective triangular wave signals with a common control signal representative of a control requirement. The two-phase pulse signals are obtained from the respective comparators and the time duration of each of the pulse signals is proportional to the contrl voltage.
    Type: Grant
    Filed: May 30, 1975
    Date of Patent: August 31, 1976
    Assignee: Nippondenso Co., Ltd.
    Inventors: Nobuhito Hobo, Sumihiro Kaga