Patents by Inventor Michihiko Hasegawa

Michihiko Hasegawa 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: 20240117206
    Abstract: An ink contains water, a coloring material, a resin, and an organic solvent, wherein the dried layer of the ink has a surface free energy ?S having a polar component ?Sp of from 3.5 to 20 J/m2 at 25 degrees C.
    Type: Application
    Filed: September 22, 2023
    Publication date: April 11, 2024
    Applicant: Ricoh Company, Ltd.
    Inventors: Mayumi YOSHIHARA, Michihiko Namba, Takashi Tamai, Shin Hasegawa, Yuta Nakamura, Daiki Hasebe
  • Patent number: 7610141
    Abstract: An apparatus controls the quantity of fuel injection of an injector in accordance with the fuel pressure in the fuel rail of a direct injection type internal combustion engine. A reference value for controlling the injector is obtained on the basis of the difference and the fuel pressure in the fuel rail at the time of starting fuel injection out of injector.
    Type: Grant
    Filed: June 30, 2008
    Date of Patent: October 27, 2009
    Assignee: Hitachi, Ltd.
    Inventors: Masahiro Toyohara, Takashi Okamoto, Michihiko Hasegawa
  • Publication number: 20080270007
    Abstract: An apparatus controls the quantity of fuel injection of an injector in accordance with the fuel pressure in the fuel rail of a direct injection type internal combustion engine. A reference value for controlling the injector is obtained on the basis of the difference and the fuel pressure in the fuel rail at the time of starting fuel injection out of injector.
    Type: Application
    Filed: June 30, 2008
    Publication date: October 30, 2008
    Applicant: Hitachi, Ltd.
    Inventors: Masahiro TOYOHARA, Takashi Okamoto, Michihiko Hasegawa
  • Patent number: 7418337
    Abstract: An apparatus for controlling the quantity of fuel injection of injectors in accordance with the fuel pressure in the fuel rail of a direct injection type internal combustion engine, including a fuel injection quantity calculating section for calculating the quantity of fuel injection of the injector, a fuel discharge quantity calculating unit for calculating the quantity of fuel discharged from the high-pressure fuel pump into the fuel rail, and a difference calculating unit for calculating the difference between the quantity of fuel injected out of the injector calculated by the fuel injection quantity calculating section and the quantity of fuel discharged from the high-pressure fuel pump into the fuel rail calculated by the fuel discharge quantity calculating unit, wherein the reference value for controlling the injector is obtained on the basis of the difference and the fuel pressure in the fuel rail at the time of starting fuel injection out of injector, and the injector is controlled depending on the re
    Type: Grant
    Filed: August 7, 2007
    Date of Patent: August 26, 2008
    Assignee: Hitachi, Ltd.
    Inventors: Masahiro Toyohara, Takashi Okamoto, Michihiko Hasegawa
  • Publication number: 20080035118
    Abstract: An apparatus for controlling the quantity of fuel injection of injectors in accordance with the fuel pressure in the fuel rail of a direct injection type internal combustion engine, including a fuel injection quantity calculating section for calculating the quantity of fuel injection of the injector, a fuel discharge quantity calculating unit for calculating the quantity of fuel discharged from the high-pressure fuel pump into the fuel rail, and a difference calculating unit for calculating the difference between the quantity of fuel injected out of the injector calculated by the fuel injection quantity calculating section and the quantity of fuel discharged from the high-pressure fuel pump into the fuel rail calculated by the fuel discharge quantity calculating unit, wherein the reference value for controlling the injector is obtained on the basis of the difference and the fuel pressure in the fuel rail at the time of starting fuel injection out of injector, and the injector is controlled depending on the re
    Type: Application
    Filed: August 7, 2007
    Publication date: February 14, 2008
    Applicant: Hitachi, Ltd.
    Inventors: Masahiro TOYOHARA, Takashi Okamoto, Michihiko Hasegawa
  • Patent number: 5138384
    Abstract: An electrophotographic copying machine includes a mouse connected to a main unit to input positional information for editing. When the mouse is moved on an original for editing, pulses are generated from the mouse according to a rotation of a roller, which are counted by a counter of a microcomputer. A count value of the counter is utilized as positional data. In order to display a copy quantity, there is provided a segmental display. In the editing mode, a predetermined segment of the segmental display is selectively lightened so as to display the states of sequential position designations by the mouse. Therefore, it is possible to visibly confirm the state of the position designations for editing.
    Type: Grant
    Filed: December 4, 1989
    Date of Patent: August 11, 1992
    Assignee: Sanyo Electric Co., Ltd.
    Inventors: Taketomo Mizutani, Kenhachi Shiraki, Michihiko Hasegawa, Yujiro Koumoto, Yoshihiro Tanimoto, Masayuki Tanaka, Toshiya Yabe
  • Patent number: 4796052
    Abstract: An electrophotographic copying machine comprises a mouse which is connected to a main unit by a connecting cord and is for inputting positional information for editing. The mouse has a roller whose peripheral side surface is exposed from a case. When the mouse is moved while the peripheral side surface of the roller is brought in contact with a surface of an original, pulses are generated from the mouse attending on rotation of the roller, and these pulses are counted by a counter of a microcomputer. The counted value of the counter is utilized as positional data for editing by the microcomputer. Based on that positional data, the microcomputer partially and selectively lightens of a plurality of LED elements constituting a LED array. Therefore, an electrostatic latent image on a photoreceptor-drum is partially erased so that "masking or "trimming" of an image in an area defined by the positional data is executed.
    Type: Grant
    Filed: February 20, 1987
    Date of Patent: January 3, 1989
    Assignee: Sanyo Electric Co., Ltd.
    Inventors: Taketomo Mizutani, Kenhachi Shiraki, Michihiko Hasegawa, Yujiro Koumoto, Yoshihiro Tanimoto, Masayuki Tanaka, Fumizo Kimoto, Fumihiko Hamada