Patents by Inventor Tadamasa Furuya
Tadamasa Furuya 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).
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Patent number: 10836081Abstract: A thin film member forming device includes a reference roll fixedly disposed while being rotatably supported by a first bearing member, a movable roll disposed movably with respect to the reference roll while being rotatably supported by a second bearing member, a roll gap adjusting mechanism which adjusts a gap between the reference roll and the movable roll and a roll opening mechanism which expands the gap. The roll gap adjusting mechanism adds a load in a direction to narrow the gap to the second bearing member, and the roll opening mechanism adds a load in a direction to expand the gap to the second bearing member.Type: GrantFiled: May 31, 2018Date of Patent: November 17, 2020Assignee: TOSHIBA KIKAI KABUSHIKI KAISHAInventors: Koji Mizunuma, Tadamasa Furuya, Tomonori Yamaguchi
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Publication number: 20180345543Abstract: A thin film member forming device includes a reference roll fixedly disposed while being rotatably supported by a first bearing member, a movable roll disposed movably with respect to the reference roll while being rotatably supported by a second bearing member, a roll gap adjusting mechanism which adjusts a gap between the reference roll and the movable roll and a roll opening mechanism which expands the gap. The roll gap adjusting mechanism adds a load in a direction to narrow the gap to the second bearing member, and the roll opening mechanism adds a load in a direction to expand the gap to the second bearing member.Type: ApplicationFiled: May 31, 2018Publication date: December 6, 2018Applicant: TOSHIBA KIKAI KABUSHIKI KAISHAInventors: Koji Mizunuma, Tadamasa Furuya, Tomonori Yamaguchi
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Patent number: 9375792Abstract: A sheet film forming roll is manufactured by processing a thin cylindrical work used as an external cylinder of the sheet film forming roll by holding the thin cylindrical work using a holding jig and machining an outer peripheral surface of the thin cylindrical work. The holding jig includes a holding member, a diameter changing unit, and a pair of circular side plates. The holding member is made of a metal and has a cylindrical shape and an elastically expandable or contractible diameter. An outside diameter of the holding member is held smaller than an inside diameter of the thin cylindrical work for insertion of the holding member into an inner periphery of the thin cylindrical work and expanded after insertion of the holding member into the inner periphery of the thin cylindrical work to hold the thin cylindrical work from an inner peripheral side of the thin cylindrical work.Type: GrantFiled: January 28, 2015Date of Patent: June 28, 2016Assignee: TOSHIBA KIKAI KABUSHIKI KAISHAInventors: Takayoshi Sano, Tadamasa Furuya
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Patent number: 9227249Abstract: A method for processing a thin cylindrical work includes holding the work using a holding jig. The jig includes a cylindrical holding member which holds the work from an inner peripheral side and a diameter changing unit which changes a diameter of the holding member. The metal holding member has an elastically expandable or contractible diameter. The outside diameter of the holding member is held smaller than an inside diameter of the work when inserted into an inner periphery of the work and is expanded after insertion. The diameter changing unit applies at least one of an axial external force in a compressing direction or an axial external force in a tensile direction to both ends of the holding member to change the diameter of the holding member.Type: GrantFiled: January 28, 2015Date of Patent: January 5, 2016Assignee: Toshiba Kikai Kabushiki KaishaInventors: Takayoshi Sano, Tadamasa Furuya
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Publication number: 20150209873Abstract: A holding jig for a thin cylindrical work (W) includes a holding member (10, 10A, 10B) which holds the work (W) from an inner peripheral side and a diameter changing unit (25, 27) which changes a diameter of the holding member (10, 10A, 10B). The holding member (10, 10A, 10B) is made of metal and has a cylindrical shape and an elastically expandable or contractible diameter. The holding member (10, 10A, 10B) is configured with an outside diameter of the holding member (10, 10A, 10B) being held smaller than an inside diameter of the work (W) at the time of insertion into an inner periphery of the work (W) and being expanded after inserted into the inner periphery of the work (W) to hold the work (W) from an inner peripheral side of the work (W) with an outer peripheral surface in close contact with an entire inner peripheral surface of the work (W).Type: ApplicationFiled: January 28, 2015Publication date: July 30, 2015Inventors: Takayoshi SANO, Tadamasa FURUYA
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Publication number: 20150202725Abstract: A holding jig for a thin cylindrical work (W) includes a holding member (10, 10A, 10B) which holds the work (W) from an inner peripheral side and a diameter changing unit (25, 27) which changes a diameter of the holding member (10, 10A, 10B). The holding member (10, 10A, 10B) is made of metal and has a cylindrical shape and an elastically expandable or contractible diameter. The holding member (10, 10A, 10B) is configured with an outside diameter of the holding member (10, 10A, 10B) being held smaller than an inside diameter of the work (W) at the time of insertion into an inner periphery of the work (W) and being expanded after inserted into the inner periphery of the work (W) to hold the work (W) from an inner peripheral side of the work (W) with an outer peripheral surface in close contact with an entire inner peripheral surface of the work (W).Type: ApplicationFiled: January 28, 2015Publication date: July 23, 2015Inventors: Takayoshi SANO, Tadamasa FURUYA
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Patent number: 8973304Abstract: A holding jig (1, 2, 3) for a thin cylindrical work (W) includes a holding member (10, 10A, 10B) which holds the work (W) from an inner peripheral side and a diameter changing unit (25, 27) which changes a diameter of the holding member (10, 10A, 10B). The holding member (10, 10A, 10B) is made of metal and has a cylindrical shape and an elastically expandable or contractible diameter. The holding member (10, 10A, 10B) is configured with an outside diameter of the holding member (10, 10A, 10B) being held smaller than an inside diameter of the work (W) at the time of insertion into an inner periphery of the work (W) and being expanded after inserted into the inner periphery of the work (W) to hold the work (W) from an inner peripheral side of the work (W) with an outer peripheral surface in close contact with an entire inner peripheral surface of the work (W).Type: GrantFiled: May 12, 2010Date of Patent: March 10, 2015Assignee: Toshiba Kikai Kabushiki KaishaInventors: Takayoshi Sano, Tadamasa Furuya
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Patent number: 8241192Abstract: A sheet or film-forming roll 10 includes an inner cylinder member 20 having axial parts 21, 22 provided on both sides thereof and rotatably supported by bearing parts 26, 27 through the axial parts 21, 22, a rubber roll 40 fitted to an outer circumferential surface of the inner cylinder member 20, eccentric side plates 53, 54 rotatably fitted to the axial parts 21, 22 of the inner cylinder member 20 respectively, and an elastic outer cylinder member 50 rotatably supported by the eccentric side plates 53, 54. The elastic outer cylinder member 50, which is provided with a thin-walled structure and made from metal, has an inner diameter larger than an outer diameter of the rubber roll 40 to accommodate the rubber roll 40 in an interior 68 thereof, and has inner circumferential surface 50A coming into contact with an outer circumferential surface 40A of the rubber roll 40.Type: GrantFiled: September 8, 2010Date of Patent: August 14, 2012Assignee: Toshiba Kikai Kabushiki KaishaInventors: Takayoshi Sano, Tadamasa Furuya, Takehiro Yamamoto, Satoru Nitta, Koji Mizunuma, Takashi Hirose
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Publication number: 20120065041Abstract: A holding jig (1, 2, 3) for a thin cylindrical work (W) includes a holding member (10, 10A, 10B) which holds the work (W) from an inner peripheral side and a diameter changing unit (25, 27) which changes a diameter of the holding member (10, 10A, 10B). The holding member (10, 10A, 10B) is made of metal and has a cylindrical shape and an elastically expandable or contractible diameter. The holding member (10, 10A, 10B) is configured with an outside diameter of the holding member (10, 10A, 10B) being held smaller than an inside diameter of the work (W) at the time of insertion into an inner periphery of the work (W) and being expanded after inserted into the inner periphery of the work (W) to hold the work (W) from an inner peripheral side of the work (W) with an outer peripheral surface in close contact with an entire inner peripheral surface of the work (W).Type: ApplicationFiled: May 12, 2010Publication date: March 15, 2012Applicant: TOSHIBA KIKAI KABUSHIKI KAISHAInventors: Takayoshi Sano, Tadamasa Furuya
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Publication number: 20110003672Abstract: A sheet or film-forming roll 10 includes an inner cylinder member 20 having axial parts 21, 22 provided on both sides thereof and rotatably supported by bearing parts 26, 27 through the axial parts 21, 22, a rubber roll 40 fitted to an outer circumferential surface of the inner cylinder member 20, eccentric side plates 53, 54 rotatably fitted to the axial parts 21, 22 of the inner cylinder member 20 respectively, and an elastic outer cylinder member 50 rotatably supported by the eccentric side plates 53, 54. The elastic outer cylinder member 50, which is provided with a thin-walled structure and made from metal, has an inner diameter larger than an outer diameter of the rubber roll 40 to accommodate the rubber roll 40 in an interior 68 thereof, and has inner circumferential surface 50A coming into contact with an outer circumferential surface 40A of the rubber roll 40.Type: ApplicationFiled: September 8, 2010Publication date: January 6, 2011Applicant: TOSHIBA KIKAI KABUSHIKI KAISHAInventors: Takayoshi Sano, Tadamasa Furuya, Takehiro Yamamoto, Satoru Nitta, Koji Mizunuma, Takashi Hirose
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Patent number: 7811218Abstract: A sheet or film-forming roll 10 includes an inner cylinder member 20 having axial parts 21, 22 provided on both sides thereof and rotatably supported by bearing parts 26, 27 through the axial parts 21, 22, a rubber roll 40 fitted to an outer circumferential surface of the inner cylinder member 20, eccentric side plates 53, 54 rotatably fitted to the axial parts 21, 22 of the inner cylinder member 20 respectively, and an elastic outer cylinder member 50 rotatably supported by the eccentric side plates 53, 54. The elastic outer cylinder member 50, which is provided with a thin-walled structure and made from metal, has an inner diameter larger than an outer diameter of the rubber roll 40 to accommodate the rubber roll 40 in an interior 68 thereof, and has inner circumferential surface 50A coming into contact with an outer circumferential surface 40A of the rubber roll 40.Type: GrantFiled: September 22, 2006Date of Patent: October 12, 2010Assignee: Toshiba Kikai Kabushiki KaishaInventors: Takayoshi Sano, Tadamasa Furuya, Takehiro Yamamoto, Satoru Nitta, Koji Mizunuma, Takashi Hirose
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Publication number: 20070063376Abstract: A sheet or film-forming roll 10 includes an inner cylinder member 20 having axial parts 21, 22 provided on both sides thereof and rotatably supported by bearing parts 26, 27 through the axial parts 21, 22, a rubber roll 40 fitted to an outer circumferential surface of the inner cylinder member 20, eccentric side plates 53, 54 rotatably fitted to the axial parts 21, 22 of the inner cylinder member 20 respectively, and an elastic outer cylinder member 50 rotatably supported by the eccentric side plates 53, 54. The elastic outer cylinder member 50, which is provided with a thin-walled structure and made from metal, has an inner diameter larger than an outer diameter of the rubber roll 40 to accommodate the rubber roll 40 in an interior 68 thereof, and has inner circumferential surface 50A coming into contact with an outer circumferential surface 40A of the rubber roll 40.Type: ApplicationFiled: September 22, 2006Publication date: March 22, 2007Applicant: TOSHIBA KIKAI KABUSHIKI KAISHAInventors: Takayoshi SANO, Tadamasa FURUYA, Takehiro YAMAMOTO, Satoru NITTA, Koji MIZUNUMA, Takashi HIROSE