Patents by Inventor Takao Shigemi

Takao Shigemi 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).

  • Gear cutting simulation method, gear cutting simulation program, and gear cutting simulation device
    Patent number: 7599824
    Abstract: In a gear cutting simulation method and device, a gear-cutting-machine model which specifies relative positions between a blank model and a cutter model is created. A gear model is created as a result of simulation of gear cutting which is performed with the blank model and the cutter model arranged in the gear-cutting-machine model.
    Type: Grant
    Filed: March 15, 2005
    Date of Patent: October 6, 2009
    Assignee: Sumitomo Heavy Industries, Ltd.
    Inventors: Takao Shigemi, Akira Yamamoto
  • Key-engaging part structure
    Patent number: 7237976
    Abstract: A key-engaging part structure which realizes an efficient formation of a key-engaging part in an axial-hole member is provided. A key-engaging through hole is formed in a key-engaging part of an axial-hole member while both and portions of the axial-hole member leave intact such that the key-engaging through hole is bored through the axial-hole member in the radial direction. The key-engaging part is formed using this through hole.
    Type: Grant
    Filed: April 4, 2002
    Date of Patent: July 3, 2007
    Assignee: Sumitomo Heavy Industries, Ltd.
    Inventors: Masahiro Shimada, Akira Yamamoto, Takao Shigemi
  • Geared motor and shaft member for geared motor
    Publication number: 20070022836
    Abstract: A motor with a helical pinion is made available as the motor for a hypoid geared motor. The hypoid geared motor includes a motor with a helical pinion formed on a motor shaft; a shaft member having an engagement portion integrally rotatable with the helical pinion at one end and having a hypoid pinion formed at the other end; and a hypoid gear to engage with the hypoid pinion.
    Type: Application
    Filed: June 14, 2006
    Publication date: February 1, 2007
    Inventors: Takao Shigemi, Masanori Egawa, Tetsushi Isozaki
  • Gear system
    Publication number: 20060213303
    Abstract: The gear system has a lubricant A put into an inner part of an oil seal provided around an input shaft, and a lubricant B put into an inner part of the reducer (gear system) which mainly lubricates a reducer portion. The characteristics of these lubricants A and B are set in such a manner that a base oil viscosity of the lubricant A is smaller than that of the latter lubricant B and a cone penetration of the lubricant A is larger than that of the lubricant B.
    Type: Application
    Filed: March 17, 2006
    Publication date: September 28, 2006
    Inventors: Takao Shigemi, Tetsushi Isozaki
  • Gear cutting simulation method, gear cutting simulation program, and gear cutting simulation device
    Publication number: 20050159938
    Abstract: In a gear cutting simulation method and device, a gear-cutting-machine model which specifies relative positions between a blank model and a cutter model is created. A gear model is created as a result of simulation of gear cutting which is performed with the blank model and the cutter model arranged in the gear-cutting-machine model.
    Type: Application
    Filed: March 15, 2005
    Publication date: July 21, 2005
    Inventors: Takao Shigemi, Akira Yamamoto
  • Series of hypoid reducers and series of hypoid geared motors
    Publication number: 20030074994
    Abstract: A series of hypoid reducers (reducing devices) and a series of hypoid geared motors are provided in a wide variety at a low cost, which corresponds to many different speed reduction ratios and a low cost inventory. The hypoid reducers have a hypoid gear set including a hypoid pinion and a hypoid gear. The hypoid gear sets can have different speed reduction ratios and can be integrated into a gearbox common to the series hypoid reducers.
    Type: Application
    Filed: October 22, 2002
    Publication date: April 24, 2003
    Inventors: Tetsushi Isozaki, Yasushi Mineshima, Masanori Egawa, Takao Shigemi, Kiyoji Minegishi
  • Method for forming key-engaging part of axial-hole member, and key-engaging part structure
    Publication number: 20020150422
    Abstract: A method for forming a key-engaging part of an axial-hole member and a key-engaging part structure which realize an efficient formation of a key-engaging part in an axial-hole member are provided. A key-engaging through hole is formed in a key-engaging part of an axial-hole member while both end portions of the axial-hole member leave intact such that the key-engaging through hole is bored through the axial-hole member in the radial direction. The key-engaging part is formed using this through hole.
    Type: Application
    Filed: April 4, 2002
    Publication date: October 17, 2002
    Inventors: Masahiro Shimada, Akira Yamamoto, Takao Shigemi
  • Speed reducer
    Patent number: D831719
    Type: Grant
    Filed: December 22, 2016
    Date of Patent: October 23, 2018
    Assignee: SUMITOMO HEAVY INDUSTRIES, LTD.
    Inventors: Takao Shigemi, Kazuhiro Kimura, Tomoki Tanaka, Keiichi Oda, Kazuhisa Abe, Shingo Ohuchi, Shunsuke Miwa