Patents by Inventor Yuji Shimomura

Yuji Shimomura 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: 11072189
    Abstract: The medium discharging apparatus includes a medium receiving portion that includes a first portion and a second portion that is provided on the first portion and that is configured to be displaced between a retracted position and an advanced position, a moving member configured to move between a first position and a second position, in which the moving member pushes and moves the second portion towards the advanced position as the moving member moves from the first position towards the second position and in which the moving member is moved to the first position as the second portion is displaced to the retracted position, a pushing member that pushes the moving member towards the second position, and a restricting member configured to switch between a restricting state that restricts a movement of the moving member towards the second position, and a non-restricting state that releases the restricting state.
    Type: Grant
    Filed: November 4, 2019
    Date of Patent: July 27, 2021
    Assignee: Seiko Epson Corporation
    Inventors: Yuji Miyamoto, Masaki Shimomura, Akira Nakazawa, Toshihiro Imae
  • Patent number: 10359102
    Abstract: A friction roller-type reduction gear includes a sun roller concentric with an input shaft, a ring roller having a stationary ring roller element and a moveable ring roller element, intermediate rollers in rolling contact with an outer peripheral surface of the sun roller and an inner peripheral surface of the ring roller, a coupling part coupling the ring roller and the output shaft, and a loading cam mechanism having a cam ring for changing contact surface pressure of each rolling contact surface. The outer surface of the sun roller is a concave curved surface of which a shape of an outer edge in an axial cross-section is a single circular arc-shaped concave curve, and an outer surface of the intermediate roller is a convex curved surface of which a shape of an outer edge in an axial cross-section is a single circular arc-shaped convex curve.
    Type: Grant
    Filed: February 24, 2016
    Date of Patent: July 23, 2019
    Assignee: NSK LTD.
    Inventors: Hiroshi Kawahara, Hiroyasu Yoshioka, Tetsu Takehara, Yuji Shimomura
  • Patent number: 10214671
    Abstract: The working fluid composition for a refrigerating machine of the invention is characterized by comprising an ester of a polyhydric alcohol and a fatty acid with a content of a C5-C9 branched fatty acid of 50-100% by mole, and a fluoropropene refrigerant and/or trifluoroiodomethane refrigerant. The refrigerating machine oil of the invention is characterized by comprising an ester of a polyhydric alcohol and a fatty acid with a content of a C5-C9 branched fatty acid of 50-100% by mole, and by being used together with a fluoropropene refrigerant and/or trifluoroiodomethane refrigerant.
    Type: Grant
    Filed: March 18, 2016
    Date of Patent: February 26, 2019
    Assignee: JX NIPPON OIL & ENERGY CORPORATION
    Inventors: Yuji Shimomura, Katsuya Takigawa
  • Publication number: 20180347675
    Abstract: A friction roller-type reduction gear includes a sun roller arranged concentrically with an input shaft, a ring roller having a stationary ring roller element and a moveable ring roller element, a plurality of intermediate rollers configured to be in rolling contact with an outer peripheral surface of the sun roller and an inner peripheral surface of the ring roller, a coupling part configured to couple the ring roller and the output shaft, and a loading cam mechanism having a cam ring and configured to change a contact surface pressure of each rolling contact surface. The outer peripheral surface of the sun roller is a concave curved surface of which a shape of an outer edge in an axial cross-section is a single circular arc-shaped concave curve, and an outer peripheral surface of the intermediate roller is a convex curved surface of which a shape of an outer edge in an axial cross-section is a single circular arc-shaped convex curve.
    Type: Application
    Filed: February 24, 2016
    Publication date: December 6, 2018
    Applicant: NSK LTD.
    Inventors: Hiroshi KAWAHARA, Hiroyasu YOSHIOKA, Tetsu TAKEHARA, Yuji SHIMOMURA
  • Publication number: 20160208154
    Abstract: The working fluid composition for a refrigerating machine of the invention is characterized by comprising an ester of a polyhydric alcohol and a fatty acid with a content of a C5-C9 branched fatty acid of 50-100% by mole, and a fluoropropene refrigerant and/or trifluoroiodomethane refrigerant. The refrigerating machine oil of the invention is characterized by comprising an ester of a polyhydric alcohol and a fatty acid with a content of a C5-C9 branched fatty acid of 50-100% by mole, and by being used together with a fluoropropene refrigerant and/or trifluoroiodomethane refrigerant.
    Type: Application
    Filed: March 18, 2016
    Publication date: July 21, 2016
    Applicant: Nippon Oil Corporation
    Inventors: Yuji Shimomura, Katsuya Takigawa
  • Patent number: 9321948
    Abstract: The working fluid composition for a refrigerating machine of the invention is characterized by comprising an ester of a polyhydric alcohol and a fatty acid with a content of a C5-C9 branched fatty acid of 50-100% by mole, and a fluoropropene refrigerant and/or trifluoroiodomethane refrigerant. The refrigerating machine oil of the invention is characterized by comprising an ester of a polyhydric alcohol and a fatty acid with a content of a C5-C9 branched fatty acid of 50-100% by mole, and by being used together with a fluoropropene refrigerant and/or trifluoroiodomethane refrigerant.
    Type: Grant
    Filed: February 25, 2008
    Date of Patent: April 26, 2016
    Assignee: Nippon Oil Corporation
    Inventors: Yuji Shimomura, Katsuya Takigawa
  • Patent number: 9090806
    Abstract: The working fluid composition for a refrigerating machine of this invention comprises a base oil containing an ether-based compound, an amine salt of an acidic phosphoric acid ester, at least one compound selected from the group consisting of amine-based antioxidants, metal inactivating agents and alicyclic epoxy compounds, and an unsaturated fluorinated hydrocarbon refrigerant. The refrigerating machine oil of the invention comprises a base oil containing an ether-based compound, an amine salt of an acidic phosphoric acid ester, and at least one compound selected from the group consisting of amine-based antioxidants, metal inactivating agents and alicyclic epoxy compounds, and it is to be used together with an unsaturated fluorinated hydrocarbon refrigerant.
    Type: Grant
    Filed: August 16, 2010
    Date of Patent: July 28, 2015
    Assignee: JX NIPPON OIL & ENERGY CORPORATION
    Inventors: Katsuya Takigawa, Yuji Shimomura, Masanori Saito, Ken Sawada, Takeshi Okido
  • Patent number: 8876654
    Abstract: A toroidal continuously variable transmission of the present invention comprises: input side disks (1a, 1b) and output side disks (6) being supported concentric with each other such that the disks can rotate freely; a trunnion (9) that comprises end sections (36) on both ends on which tilt shafts (13) that are concentric with each other are provided, and a support beam section (15) that extends between both end sections (36), the trunnion (9) being capable of pivotally displacing around the tilt shafts (13); a thrust rolling bearing (17); and a power roller (8) that is supported to the inside surface of the trunnion (9) by way of the thrust rolling bearing (17) such that it rotates freely; wherein the support beam section (15) comprises an inside surface having a cylindrical convex surface (14); the thrust rolling bearing (17) comprises an outer race (18a) having an outside surface with a concave section (19a) that fits with the cylindrical convex surface (14) of the support beam section (15), and a plurality
    Type: Grant
    Filed: November 24, 2010
    Date of Patent: November 4, 2014
    Assignee: NSK Ltd.
    Inventors: Hiroki Nishii, Toshihiko Sato, Eiji Inoue, Toshiro Toyoda, Hiroyasu Yoshioka, Yuji Shimomura, Shin Yamamoto
  • Patent number: 8796193
    Abstract: The first refrigerating machine oil composition of the invention comprises a predetermined base oil, and at least one ester additive selected from esters of a monobasic fatty acid having 12 or more carbon atoms and a monohydric alcohol having 1-24 carbon atoms, and an ester of a chain-like dibasic acid and a monohydric alcohol. The second refrigerating machine oil composition of the invention comprises a predetermined base oil, and at least one oxygen-containing compound selected from the following (A1)-(A6). The third refrigerating machine oil composition of the invention comprises a predetermined base oil, and at least one oxygen-containing compound selected from the following (A1), (A2), (A4), (A7) and (A8).
    Type: Grant
    Filed: July 29, 2004
    Date of Patent: August 5, 2014
    Assignee: Nippon Oil Corporation
    Inventors: Kazuo Tagawa, Yuji Shimomura, Toshiyuki Obata, Katsuya Takigawa
  • Publication number: 20140209830
    Abstract: The refrigerator oil of the invention comprises an ester of a polyhydric alcohol and a fatty acid with a content of a C5-C9 fatty acid of 50-100% by mole, a content of a C5-C9 branched fatty acid of at least 30% by mole and a content of a C5 or lower straight-chain fatty acid of not greater than 40% by mole, and it is used with a fluoropropene refrigerant and/or trifluoroiodomethane refrigerant. The working fluid composition for a refrigerating machine according to the invention comprises the ester and a fluoropropene refrigerant and/or trifluoroiodomethane refrigerant.
    Type: Application
    Filed: March 31, 2014
    Publication date: July 31, 2014
    Applicant: NIPPON OIL CORPORATION
    Inventors: Yuji SHIMOMURA, Katsuya TAKIGAWA
  • Patent number: 8318040
    Abstract: The refrigerating machine oil of the invention is characterized by comprising an ester of a polyhydric alcohol and fatty acids with a content of a C10-C13 branched fatty acid of 50% by mole or greater. The working fluid composition for a refrigerating machine of the invention is characterized in that the working fluid composition comprises an ester of a polyhydric alcohol and fatty acids with a content of a C10-C13 branched fatty acid of 50% by mole or greater, and a refrigerant.
    Type: Grant
    Filed: March 11, 2008
    Date of Patent: November 27, 2012
    Assignee: Nippon Oil Corporation
    Inventors: Ken Sawada, Yuji Shimomura, Katsuya Takigawa
  • Patent number: 8299006
    Abstract: The present invention provides a refrigerating machine oil, a compressor oil composition, a hydraulic oil composition, a metalworking oil composition, a heat treating oil composition, a lubricating oil composition for machine tools and a lubricating oil composition which comprise a lubricating oil base oil having % CA of not more than 2, % CP/% CN of not less than 6 and an iodine value of not more than 2.5.
    Type: Grant
    Filed: November 1, 2011
    Date of Patent: October 30, 2012
    Assignee: Nippon Oil Corporation
    Inventors: Kazuo Tagawa, Yuji Shimomura, Ken Sawada, Katsuya Takigawa, Toshio Yoshida, Shinichi Mitsumoto, Eiji Akiyama, Junichi Shibata, Satoshi Suda, Hideo Yokota, Masahiro Hata, Hiroyuki Hoshino, Hajime Nakao, Shozaburo Konishi
  • Publication number: 20120228541
    Abstract: The working fluid composition for a refrigerating machine of this invention comprises a base oil containing an ether-based compound, an amine salt of an acidic phosphoric acid ester, at least one compound selected from the group consisting of amine-based antioxidants, metal inactivating agents and alicyclic epoxy compounds, and an unsaturated fluorinated hydrocarbon refrigerant. The refrigerating machine oil of the invention comprises a base oil containing an ether-based compound, an amine salt of an acidic phosphoric acid ester, and at least one compound selected from the group consisting of amine-based antioxidants, metal inactivating agents and alicyclic epoxy compounds, and it is to be used together with an unsaturated fluorinated hydrocarbon refrigerant.
    Type: Application
    Filed: August 16, 2010
    Publication date: September 13, 2012
    Applicant: JX NIPPON OIL & ENERGY CORPORATION
    Inventors: Katsuya Takigawa, Yuji Shimomura, Masanori Saito, Ken Sawada, Takeshi Okido
  • Patent number: 8247360
    Abstract: The present invention provides a refrigerating machine oil, a compressor oil composition, a hydraulic oil composition, a metalworking oil composition, a heat treating oil composition, a lubricating oil composition for machine tools and a lubricating oil composition which comprise a lubricating oil base oil having % CA of not more than 2, % CP/% CN of not less than 6 and an iodine value of not more than 2.5.
    Type: Grant
    Filed: November 1, 2011
    Date of Patent: August 21, 2012
    Assignee: Nippon Oil Corporation
    Inventors: Kazuo Tagawa, Yuji Shimomura, Ken Sawada, Katsuya Takigawa, Toshio Yoshida, Shinichi Mitsumoto, Eiji Akiyama, Junichi Shibata, Satoshi Suda, Hideo Yokota, Masahiro Hata, Hiroyuki Hoshino, Hajime Nakao, Shozaburo Konishi
  • Patent number: 8236740
    Abstract: The present invention provides a refrigerating machine oil, a compressor oil composition, a hydraulic oil composition, a metalworking oil composition, a heat treating oil composition, a lubricating oil composition for machine tools and a lubricating oil composition which comprise a lubricating oil base oil having % CA of not more than 2, % CP/% CN of not less than 6 and an iodine value of not more than 2.5.
    Type: Grant
    Filed: November 1, 2011
    Date of Patent: August 7, 2012
    Assignee: Nippon Oil Corporation
    Inventors: Kazuo Tagawa, Yuji Shimomura, Ken Sawada, Katsuya Takigawa, Toshio Yoshida, Shinichi Mitsumoto, Eiji Akiyama, Junichi Shibata, Satoshi Suda, Hideo Yokota, Masahiro Hata, Hiroyuki Hoshino, Hajime Nakao, Shozaburo Konishi
  • Patent number: 8232233
    Abstract: The present invention provides a refrigerating machine oil, a compressor oil composition, a hydraulic oil composition, a metalworking oil composition, a heat treating oil composition, a lubricating oil composition for machine tools and a lubricating oil composition which comprise a lubricating oil base oil having % CA of not more than 2, % CP/% CN of not less than 6 and an iodine value of not more than 2.5.
    Type: Grant
    Filed: November 1, 2011
    Date of Patent: July 31, 2012
    Assignee: Nippon Oil Corporation
    Inventors: Kazuo Tagawa, Yuji Shimomura, Ken Sawada, Katsuya Takigawa, Toshio Yoshida, Shinichi Mitsumoto, Eiji Akiyama, Junichi Shibata, Satoshi Suda, Hideo Yokota, Masahiro Hata, Hiroyuki Hoshino, Hajime Nakao, Shozaburo Konishi
  • Patent number: 8227387
    Abstract: The present invention provides a refrigerating machine oil, a compressor oil composition, a hydraulic oil composition, a metalworking oil composition, a heat treating oil composition, a lubricating oil composition for machine tools and a lubricating oil composition which comprise a lubricating oil base oil having % CA of not more than 2, % CP/% CN of not less than 6 and an iodine value of not more than 2.5.
    Type: Grant
    Filed: November 1, 2011
    Date of Patent: July 24, 2012
    Assignee: Nippon Oil Corporation
    Inventors: Kazuo Tagawa, Yuji Shimomura, Ken Sawada, Katsuya Takigawa, Toshio Yoshida, Shinichi Mitsumoto, Eiji Akiyama, Junichi Shibata, Satoshi Suda, Hideo Yokota, Masahiro Hata, Hiroyuki Hoshino, Hajime Nakao, Shozaburo Konishi
  • Patent number: 8227388
    Abstract: The present invention provides a refrigerating machine oil, a compressor oil composition, a hydraulic oil composition, a metalworking oil composition, a heat treating oil composition, a lubricating oil composition for machine tools and a lubricating oil composition which comprise a lubricating oil base oil having % CA of not more than 2, % CP/% CN of not less than 6 and an iodine value of not more than 2.5.
    Type: Grant
    Filed: November 1, 2011
    Date of Patent: July 24, 2012
    Assignee: Nippon Oil Corporation
    Inventors: Kazuo Tagawa, Yuji Shimomura, Ken Sawada, Katsuya Takigawa, Toshio Yoshida, Shinichi Mitsumoto, Eiji Akiyama, Junichi Shibata, Satoshi Suda, Hideo Yokota, Masahiro Hata, Hiroyuki Hoshino, Hajime Nakao, Shozaburo Konishi
  • Patent number: 8206260
    Abstract: In a toroidal continuously variable transmission unit, a pair of guide surface portions 120, 120 are provided on a trunnion 15 so as to face oppositely each other and to extend in a direction which intersects a rotational center axis of a power roller 11 at right angles and intersects pivot shafts 14 at right angles. When a tangential force along a direction of the pivot shafts 14 is applied to the power roller 11, an outer circumferential surface 110 of an outer ring 28 can be brought into abutment with these guide surface portions 120, 120. By this, the toroidal continuously variable transmission unit with good machinability can be obtained in which the power roller together with the outer ring can be rolling guided smoothly relative to the trunnion by an inexpensive and simple construction while avoiding the offsetting of a shaft portion which supports the power roller.
    Type: Grant
    Filed: June 28, 2007
    Date of Patent: June 26, 2012
    Assignee: NSK Ltd.
    Inventor: Yuji Shimomura
  • Patent number: 8193129
    Abstract: The present invention provides a refrigerating machine oil, a compressor oil composition, a hydraulic oil composition, a metalworking oil composition, a heat treating oil composition, a lubricating oil composition for machine tools and a lubricating oil composition which comprise a lubricating oil base oil having % CA of not more than 2, % CP/% CN of not less than 6 and an iodine value of not more than 2.5.
    Type: Grant
    Filed: July 3, 2007
    Date of Patent: June 5, 2012
    Assignee: Nippon Oil Corporation
    Inventors: Kazuo Tagawa, Yuji Shimomura, Ken Sawada, Katsuya Takigawa, Toshio Yoshida, Shinichi Mitsumoto, Eiji Akiyama, Junichi Shibata, Satoshi Suda, Hideo Yokota, Masahiro Hata, Hiroyuki Hoshino, Hajime Nakao, Shozaburo Konishi