Patents by Inventor Hitoshi OYA

Hitoshi OYA 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: 11914297
    Abstract: A cover film for dry film resist, includes a polyethylene film including a first mixture of high pressure low density polyethylene (LDPE) and linear low density polyethylene (LLDPE). The first mixture has an LDPE to LLDPE ratio by mass of from 90:10 to 60:40. The polyethylene film is free of a plasticizer, anti-blocking agent, slipping agent, and anti-static agent. The number of fish eyes having a minimum diameter of 0.2 mm or greater present in 100 m2 of the 19 ?m thick cover film in plan view is at most two. The polyethylene film has a thickness of from 10 to 20 ?m and a haze value of from 12 to 25%.
    Type: Grant
    Filed: June 17, 2019
    Date of Patent: February 27, 2024
    Assignee: TAMAPOLY CO., LTD.
    Inventors: Shinichi Oya, Toshiaki Hagiwara, Hitoshi Nakamura
  • Patent number: 10533651
    Abstract: A gap adjustment member includes a main body and an outward protrusion. The main body portion has a diameter less than or equal to the diameter of a mounting hole. The outward protrusion protrudes outwardly on an outer perimeter surface of the main body portion, the number of the protrusions being less than or equal to the number of recessed grooves. A diameter of a circumscribing circle, which circumscribes the main body portion and passes a projecting end of the protrusion, and a crossing point, in which a line that passes the projecting end and a center of the main body portion intersects the outer perimeter surface of the main body portion, and which is a crossing point on the opposite side of the projecting end, is configured to be greater than the diameter of the mounting hole and less than or equal to the diameter of an annular groove.
    Type: Grant
    Filed: March 18, 2016
    Date of Patent: January 14, 2020
    Assignee: Aichi Machine Industry, Co., Ltd.
    Inventors: Yasushi Suzumura, Takayuki Nakashima, Hitoshi Oya, Toshitaka Tsuji, Hiromasa Kondo
  • Publication number: 20160334003
    Abstract: A gap adjustment member includes a main body and an outward protrusion. The main body portion has a diameter less than or equal to the diameter of a mounting hole. The outward protrusion protrudes outwardly on an outer perimeter surface of the main body portion, the number of the protrusions being less than or equal to the number of recessed grooves. A diameter of a circumscribing circle, which circumscribes the main body portion and passes a projecting end of the protrusion, and a crossing point, in which a line that passes the projecting end and a center of the main body portion intersects the outer perimeter surface of the main body portion, and which is a crossing point on the opposite side of the projecting end, is configured to be greater than the diameter of the mounting hole and less than or equal to the diameter of an annular groove.
    Type: Application
    Filed: March 18, 2016
    Publication date: November 17, 2016
    Inventors: Yasushi SUZUMURA, Takayuki NAKASHIMA, Hitoshi OYA, Toshitaka TSUJI, Hiromasa KONDO
  • Patent number: 8776631
    Abstract: A transmission shift fork engages with a coupling sleeve of a synchronizer and shifting the coupling sleeve. The transmission shift fork includes a first part, second part, and at least one fin. The first part is arranged to movably mount the transmission shift fork in a shift fork movement direction. The second part includes a coupling sleeve facing surface, an outwardly facing surface, and a pair of shift-direction facing surfaces. The coupling sleeve facing surface includes at least one coupling sleeve engagement part arranged to engage with an engaging groove formed on an external circumferential surface of the coupling sleeve. The outwardly facing surface includes an oil catch disposed in a position with respect to the coupling sleeve engagement part such that the oil catch captures lubricating oil and supplies to the coupling sleeve engagement part. The fin projects from inside an oil receiving recess defined by the oil catch.
    Type: Grant
    Filed: December 15, 2010
    Date of Patent: July 15, 2014
    Assignee: Aichi Machine Industry Co., Ltd.
    Inventors: Masatoshi Hada, Hitoshi Oya, Kentarou Nakamura, Hiroyuki Momota, Takao Mori
  • Publication number: 20120011955
    Abstract: A transmission shift fork engages with a coupling sleeve of a synchronizer and shifting the coupling sleeve. The transmission shift fork includes a first part, second part, and at least one fin. The first part is arranged to movably mount the transmission shift fork in a shift fork movement direction. The second part includes a coupling sleeve facing surface, an outwardly facing surface, and a pair of shift-direction facing surfaces. The coupling sleeve facing surface includes at least one coupling sleeve engagement part arranged to engage with an engaging groove formed on an external circumferential surface of the coupling sleeve. The outwardly facing surface includes an oil catch disposed in a position with respect to the coupling sleeve engagement part such that the oil catch captures lubricating oil and supplies to the coupling sleeve engagement part. The fin projects from inside an oil receiving recess defined by the oil catch.
    Type: Application
    Filed: December 15, 2010
    Publication date: January 19, 2012
    Applicant: AICHI MACHINE INDUSTRY CO., LTD.
    Inventors: Masatoshi HADA, Hitoshi OYA, Kentarou NAKAMURA, Hiroyuki MOMOTA, Takao MORI