Patents by Inventor Tsutomu Fukunaga

Tsutomu Fukunaga 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: 20220281051
    Abstract: A substrate processing apparatus includes: a polishing pad that polishes a substrate; a pod that accommodates a polishing surface of the polishing pad, which is brought into contact with the substrate; an imaging unit that images the polishing surface of the polishing pad through the pod; and an image processing unit that processes image data imaged by the imaging unit to detect deterioration of the polishing pad.
    Type: Application
    Filed: February 23, 2022
    Publication date: September 8, 2022
    Inventor: Tsutomu FUKUNAGA
  • Patent number: 8733537
    Abstract: A guiding apparatus includes a hanger line that continuously conveys hangers that are suspended from the hanger line at predetermined intervals and a guide unit installed in the line and driven in synchronization with the line while holding at least one of the objects, thereby maintaining the attitude of the object and guiding the attitude maintained object along the line.
    Type: Grant
    Filed: March 7, 2013
    Date of Patent: May 27, 2014
    Assignee: NHK Spring Co., Ltd.
    Inventors: Kotaro Nukui, Satoshi Akiyama, Tsutomu Fukunaga, Masahiro Chigasaki
  • Publication number: 20130240328
    Abstract: A guiding apparatus includes a hanger line that continuously conveys hangers that are suspended from the hanger line at predetermined intervals and a guide unit installed in the line and driven in synchronization with the line while holding at least one of the objects, thereby maintaining the attitude of the object and guiding the attitude maintained object along the line.
    Type: Application
    Filed: March 7, 2013
    Publication date: September 19, 2013
    Applicant: NHK SPRING CO., LTD.
    Inventors: Kotaro NUKUI, Satoshi AKIYAMA, Tsutomu FUKUNAGA, Masahiro CHIGASAKI
  • Patent number: 8378272
    Abstract: Disclosed is a heat treatment apparatus for performing a heat treatment on an object to-be-processed by a heater, which can inhibit variation in thermal histories among the objects to-be-processed. The heat treatment apparatus includes, among others, a correction part to correct a power control signal output from an adjusting unit so that a conduction rate of an AC voltage applied to a heater is decreased. Specifically, the correction is performed based on a value obtained by multiplying a first correction value with a second correction value, where the first correction value is generated according to a ratio of the voltage detection value of AC power source to a predetermined reference voltage, and the second correction value is generated according to a ratio of the resistance value of the heater to a predetermined reference resistance value.
    Type: Grant
    Filed: February 23, 2011
    Date of Patent: February 19, 2013
    Assignee: Tokyo Electron Limited
    Inventors: Kenichi Shigetomi, Tsutomu Fukunaga, Yasuhiro Uchida
  • Publication number: 20110210116
    Abstract: Disclosed is a heat treatment apparatus for performing a heat treatment on an object to-be-processed by a heater, which can inhibit variation in thermal histories among the objects to-be-processed. The heat treatment apparatus includes, among others, a correction part to correct a power control signal output from an adjusting unit so that a conduction rate of an AC voltage applied to a heater is decreased. Specifically, the correction is performed based on a value obtained by multiplying a first correction value with a second correction value, where the first correction value is generated according to a ratio of the voltage detection value of AC power source to a predetermined reference voltage, and the second correction value is generated according to a ratio of the resistance value of the heater to a predetermined reference resistance value.
    Type: Application
    Filed: February 23, 2011
    Publication date: September 1, 2011
    Applicant: TOKYO ELECTRON LIMITED
    Inventors: Kenichi SHIGETOMI, Tsutomu FUKUNAGA, Yasuhiro UCHIDA