Patents by Inventor Hiroshi Miyashita

Hiroshi Miyashita 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: 6069136
    Abstract: The purpose of the present invention is to provide a simple and economical method for the production of BC having improved properties such as dispesibility, suspensibility and viscosity.
    Type: Grant
    Filed: March 16, 1998
    Date of Patent: May 30, 2000
    Assignee: Bio-Polymer Research Co., Ltd.
    Inventors: Naoki Tahara, Kunihiko Watanabe, Nobuya Hioki, Yasushi Morinaga, Tadahiko Hajouda, Hiroshi Miyashita, Akira Shibata, Hiroshi Ougiya
  • Patent number: 5707066
    Abstract: A boot assembly with adapter comprising a boot having elasticity and an adapter having relative rigidity. The boot is provided with a small diameter mount formed at one end to be fit over the outer circumference of the shaft, a connecting bead formed at the other end for connection to the adapter, and a body formed between the small diameter mount and the connecting bead. The adapter is provided with a large diameter mount formed at one end for connection to the joint and a connecting cavity formed at the other end and fitting with the connecting bead of the boot so as to surround the connecting bead. The connecting cavity of the adapter is provided with a bend formed with a step which protrudes outward in the radial direction and pressing against the inner circumferential of the connecting bead of the boot and a foldback connecting to the bend, formed folded back to the inner circumference of the bend, and folded over itself so that the front end is accommodated in the step.
    Type: Grant
    Filed: November 30, 1995
    Date of Patent: January 13, 1998
    Assignee: NOK Corporation
    Inventors: Yoshiaki Sugiura, Hiroshi Miyashita
  • Patent number: 5474603
    Abstract: An aqueous metallic ink for a ball-point pen which is prevented from causing deterioration such as sedimentation of aluminum powder during the storage for a long period of time and which can be continuously used for writing. The ink comprises an aluminum powder, a natural polysaccharide or a dierivative thereof as a thickener, a water-soluble organic solvent and water, and has a viscosity of 100 to 1,500 P (ST rotor of E-type viscometer, 1 rpm, 25.degree. C. ) and a ratio of the viscosity at 1 rpm to that at 10 rpm of at least 3.0.
    Type: Grant
    Filed: September 27, 1994
    Date of Patent: December 12, 1995
    Assignee: Pentel Kabushiki Kaisha
    Inventors: Hiroshi Miyashita, Sachiko Matsuda, Eiichi Okabe
  • Patent number: 5062890
    Abstract: A water-based ink composition for a ball-point pen comprises: a colorant selected from dyes or pigments; a water-soluble organic solvent; water; and a metal salt and/or an amine salt of N-acyl sarcosine. This ink can effectively prevent the wear of a ball seat of the pen caused by the rotation of a ball of the same to make it possible to keep good ink-discharging properties of the pen, whereby a smooth writing of the pen can be performed.
    Type: Grant
    Filed: October 16, 1989
    Date of Patent: November 5, 1991
    Assignee: Pentel Kabushiki Kaisha
    Inventors: Hiroshi Miyashita, Hideotoshi Hamamoto, Shigeru Nagai, Makoto Yamaguchi, Onuki Isao, Hiroshi Takahashi, Atsushi Ishiguro
  • Patent number: 5027744
    Abstract: A developing device which utilizes a development solution having toner particles actuated in the electric field generated by an electromember is provided with a cleaning unit to remove excess toner particles from the surface of the electrode member. The unit includes an air blower which directs air onto the electrode member and blows excess developing solution off the electrode.
    Type: Grant
    Filed: December 4, 1989
    Date of Patent: July 2, 1991
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Hiroshi Miyashita, Masahiko Kanehisa
  • Patent number: 4813529
    Abstract: A conveyor system for use in an automobile assembly line having a body-carrying tact conveyor arranged in an endless form past an engine mounting position, and switchable between a running mode and a stopping mode, a body-carrying continuous conveyor arranged in an endless form and having an inlet section and an outlet section which are arranged on the extensions of the inlet section and the outlet section of the tact engine mounting position, a pair of feeders for delivery an automobile body between the inlet sections of both conveyors and between the outlet sections of both conveyors, and engine transferring conveyor arranged in an endless form past a delivery position near the engine position and stoppable at the body delivery position, and an engine shifting conveyor having an engine shifting jig and extending between the body delivery position and the engine mounting position and being reciprocable at a comparatively high speed.
    Type: Grant
    Filed: September 7, 1984
    Date of Patent: March 21, 1989
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Shinichi Kawai, Eiji Fukazawa, Hiroshi Miyashita, Yoshio Shiiba
  • Patent number: 4357431
    Abstract: A ball-point pen ink composition comprising at least a polymeric substance selected form a group consisting of polyisobutylene and ethylene-propylene copolymer, a wax which is solid or semi-solid at room temperature, pigment particles and a low-boiling solvent having a boiling point lower than 200.degree. C. This ball-point pen ink produces writing traces which can easily be erased by an ordinary rubber eraser, especially, even after passage of several days after initial writing.
    Type: Grant
    Filed: June 24, 1981
    Date of Patent: November 2, 1982
    Assignee: Pentel Kabushiki Kaisha
    Inventors: Nobuyuki Murakami, Hiroshi Miyashita