Patents by Inventor Tomoyasu Oike
Tomoyasu Oike 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: 9293840Abstract: A wire connector is described that suppresses the cutting of wires accidentally. The wire connector 1 includes a wire holder 6 that holds at least two wires, a contact 7A that electrically connects the two wires and a body 4 that holds the wire holder. The wire holder 6 includes first and second end faces 24 and 26, and a wire holding portion 25 that includes first and second holding portions 32, 33, 34 and 36. On the first end face 24, at portions of circumferential edge portions of the openings 34c and 36d of the second holding portions 34 and 36, protecting portions 23 that project from the first end face 24 and protect the wires are provided.Type: GrantFiled: March 7, 2013Date of Patent: March 22, 2016Assignee: 3M Innovative Properties CompanyInventors: Kenta Wasai, Rentaro Ohsawa, Tomoyasu Oike
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Publication number: 20150194743Abstract: A wire connector is described that suppresses the cutting of wires accidentally. The wire connector 1 includes a wire holder 6 that holds at least two wires, a contact 7A that electrically connects the two wires and a body 4 that holds the wire holder. The wire holder 6 includes first and second end faces 24 and 26, and a wire holding portion 25 that includes first and second holding portions 32, 33, 34 and 36. On the first end face 24, at portions of circumferential edge portions of the openings 34c and 36d of the second holding portions 34 and 36, protecting portions 23 that project from the first end face 24 and protect the wires are provided.Type: ApplicationFiled: March 7, 2013Publication date: July 9, 2015Inventors: Kenta Wasai, Rentaro Ohsawa, Tomoyasu Oike
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Patent number: 9004779Abstract: An assembly tool is provided for installing an optical fiber in an optical fiber connector having a known length of fiber extending from the connector ferrule after termination of the optical fiber connector. The assembly tool includes a base having a connector mount disposed on a first end thereof and a cradle that holds a shaped ferrule disposed near the second end of the base, such that shaped ferrule is resiliently held within the cradle. The connector mount is configured to receive and secure the optical fiber connector to the base.Type: GrantFiled: June 21, 2011Date of Patent: April 14, 2015Assignee: 3M Innovative Properties CompanyInventors: Dai Horibe, Tomoyasu Oike, Kenji Kuwahara
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Publication number: 20130114932Abstract: An assembly tool is provided for installing an optical fiber in an optical fiber connector having a known length of fiber extending from the connector ferrule after termination of the optical fiber connector. The assembly tool includes a base having a connector mount disposed on a first end thereof and a cradle that holds a shaped ferrule disposed near the second end of the base, such that shaped ferrule is resiliently held within the cradle. The connector mount is configured to receive and secure the optical fiber connector to the base.Type: ApplicationFiled: June 21, 2011Publication date: May 9, 2013Applicant: 3M INNOVATIVE PROPERTIES COMPANYInventors: Dai Horibe, Tomoyasu Oike, Kenji Kuwahara
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Patent number: 8118494Abstract: An optical fiber connector comprises an outer housing configured to mate with a receptacle and a collar body disposed in the outer housing. The collar body receives and secures a ferrule in a first portion of the collar body. The ferrule includes a central bore that defines an axis. The ferrule further includes a fiber stub disposed in a portion of the central bore, the fiber stub comprising a first optical fiber having a first end proximate to an end face of the ferrule and a prepared second end terminating within the ferrule. The collar body further includes a second portion that includes a housing portion to house a gripping device that grips a second optical fiber.Type: GrantFiled: February 7, 2008Date of Patent: February 21, 2012Assignee: 3M Innovative Properties CompanyInventors: Donald K. Larson, Sidney J. Berglund, Paul N. Winberg, James R. Bylander, Takaya Yamauchi, Tomoyasu Oike, Yukino Miyoshi
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Patent number: 8118495Abstract: An optical connector comprises a connector housing having splice means configured to abut a stripped and cleaved end surface of a plain fiber of an optical fiber cable onto an end of a fiber stub predisposed in the splice means to form an optical connection. A cable fixing assembly includes a cable fixing member and a cable holder for fixing an outer covering of the optical fiber cable introduced into said connector housing. The cable fixing member includes an opposing piece for slidably engaging with a guide section formed on the wall of an end cap of the connector housing. A step section is formed on the sliding surface of the opposing piece for sliding contact with the sliding surface of the guide section. The cable fixing member moves together with the optical fiber cable so as to reduce a distance between the splice means and the cable holder.Type: GrantFiled: April 29, 2010Date of Patent: February 21, 2012Assignee: 3M Innovative Properties CompanyInventors: Akihiko Yazaki, Tomoyasu Oike, Takaya Yamauchi
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Publication number: 20110312249Abstract: A hand-held polishing apparatus is provided for polishing an optical fiber connector. The optical fiber connector mounted on the end of an optical fiber includes a connector housing and a ferrule. The polishing apparatus includes a connector mount to receive and hold the optical connector to position the end face of the ferrule adjacent to a polishing media. The polishing apparatus includes a housing having an upper portion and a base portion, a drive assembly and a lubricant dispensing system. The drive assembly controls orbital movement of the optical connector and linear movement of the polishing media through the polishing device, and the lubricant dispensing system supplies a lubricant from an internal reservoir disposed with in the housing to the polishing media near the end face of the ferrule of the optical connector.Type: ApplicationFiled: February 22, 2010Publication date: December 22, 2011Applicant: 3M Innovative Properties CompanyInventors: James R. Bylander, Tomoyasu Oike, Takaya Yamauchi, Steven G Lucht, Kent E. Lageson
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Publication number: 20100215323Abstract: An optical connector and a method of assembling an optical connector that is capable of avoiding generation of unnecessary tension in the optical fiber cable in which plain fiber portions are optically connected to each other using a splice assembly. The optical connector comprises a connector housing having splice means configured to abut a stripped and cleaved end surface of a plain fiber of an optical fiber cable onto an end of a fiber stub predisposed in the splice means to form an optical connection; and a cable fixing assembly, that includes a cable fixing member and a cable holder, for fixing an outer covering of the optical fiber cable introduced into said connector housing. The cable fixing member, which includes an opposing piece for slidably engaging with a guide section formed on the wall of an end cap of the connector housing, is pressed in from the direction perpendicular to the axis of the optical fiber cable and is mounted on the wall of the end cap.Type: ApplicationFiled: April 29, 2010Publication date: August 26, 2010Inventors: Akihiko Yazaki, Tomoyasu Oike, Takaya Yamauchi
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Patent number: 7744290Abstract: The optical fiber connector includes a connector housing (21), having a splice assembly (13) therein, and an end cap (5) attached to one end of the connector housing (21), from which leads out a primary coating portion (3). A boundary (4c) between a portion of the primary coating portion (3), obtained by removing an outer coating (4b) of the inner cover (4) while leaving an inner coating (4a), and a portion obtained by leaving the outer coating (4b) of the inner cover (4), is located in the interior of the connector housing (21). The end cap (5) is provided in the interior thereof with a tubular portion and an extension extending from an end of the tubular portion, the tubular portion including an insert hole for an insertion of the primary coating portion (3) approximately coaxially with a guiding hole formed in the splice assembly accommodated in the connector housing (21) for guiding the primary coating portion (3) leading out from the splice assembly.Type: GrantFiled: October 30, 2006Date of Patent: June 29, 2010Assignees: 3M Innovative Properties Company, Nippon Telegraph and Telephone CorporationInventors: Akihiko Yazaki, Takaya Yamauchi, Tomoyasu Oike, Masanobu Toyonaga, Kuniaki Terakawa, Hiroyuki Tanase, Tatsuya Nakajima, Masashi Awamori
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Patent number: 7712974Abstract: An optical connector and a method of assembling an optical connector that is capable of avoiding generation of unnecessary tension in the optical fiber cable in which plain fiber portions are optically connected to each other using a splice assembly. The optical connector comprises a connector housing having splice means configured to abut a stripped and cleaved end surface of a plain fiber of an optical fiber cable (2) onto an end of a fiber stub predisposed in the splice means to form an optical connection; and a cable fixing assembly (26, 40), that includes a cable fixing member (26) and a cable holder (40), for fixing an outer covering (2c) of the optical fiber cable (2) introduced into said connector housing (10).Type: GrantFiled: October 27, 2006Date of Patent: May 11, 2010Assignee: 3M Innovative Properties CompanyInventors: Akihiko Yazaki, Tomoyasu Oike, Takaya Yamauchi
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Publication number: 20100098381Abstract: An optical fiber connector comprises an outer housing configured to mate with a receptacle and a collar body disposed in the outer housing. The collar body receives and secures a ferrule in a first portion of the collar body. The ferrule includes a central bore that defines an axis. The ferrule further includes a fiber stub disposed in a portion of the central bore, the fiber stub comprising a first optical fiber having a first end proximate to an end face of the ferrule and a prepared second end terminating within the ferrule. The collar body further includes a second portion that includes a housing portion to house a gripping device that grips a second optical fiber.Type: ApplicationFiled: February 7, 2008Publication date: April 22, 2010Inventors: Donald K. Larson, Sidney J. Berglund, Paul N. Winberg, James R. Bylander, Takaya Yamauchi, Tomoyasu Oike, Yukino Miyoshi
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Publication number: 20090220199Abstract: The optical fiber connector includes a connector housing (21), having a splice assembly (13) therein, and an end cap (5) attached to one end of the connector housing (21), from which leads out a primary coating portion (3). A boundary (4c) between a portion of the primary coating portion (3), obtained by removing an outer coating (4b) of the inner cover (4) while leaving an inner coating (4a), and a portion obtained by leaving the outer coating (4b) of the inner cover (4), is located in the interior of the connector housing (21). The end cap (5) is provided in the interior thereof with a tubular portion and an extension extending from an end of the tubular portion, the tubular portion including an insert hole for an insertion of the primary coating portion (3) approximately coaxially with a guiding hole formed in the splice assembly accommodated in the connector housing (21) for guiding the primary coating portion (3) leading out from the splice assembly.Type: ApplicationFiled: October 30, 2006Publication date: September 3, 2009Inventors: Akihiko Yazaki, Takaya Yamauchi, Tomoyasu Oike, Masanobu Toyonaga, Kuniaki Terakawa, Hiroyuki Tanase, Tatsuya Nakajima, Masashi Awamori
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Publication number: 20080310797Abstract: An optical connector and a method of assembling an optical connector that is capable of avoiding generation of unnecessary tension in the optical fiber cable in which plain fiber portions are optically connected to each other using a splice assembly. The optical connector comprises a connector housing having splice means configured to abut a stripped and cleaved end surface of a plain fiber of an optical fiber cable (2) onto an end of a fiber stub predisposed in the splice means to form an optical connection; and a cable fixing assembly (26, 40), that includes a cable fixing member (26) and a cable holder (40), for fixing an outer covering (2c) of the optical fiber cable (2) introduced into said connector housing (10).Type: ApplicationFiled: October 27, 2006Publication date: December 18, 2008Inventors: Akihiko Yazaki, Tomoyasu Oike, Takaya Yamauchi
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Publication number: 20080247710Abstract: An angle type optical connector enables a splicing operation of an optical fiber cable accurately and stably without requiring skilled labor and having a superior on-site installation property. An optical connector is provided with a splicing section for securely supporting an incorporated optical fiber securely supported at a ferrule and an optical fiber of an outside optical fiber cable in an end-abutting condition. The body of the optical connector is provided with a cable holding member able to hold an optical fiber cable. The cable holding member can be set at a temporary position where it makes an optical fiber of the optical fiber cable abut against the incorporated optical fiber at the splicing section in the state holding the optical fiber cable and bends a covered optical fiber of the optical fiber cable between the splicing section and the cable holding member by a pressing force in the lengthwise direction.Type: ApplicationFiled: June 23, 2005Publication date: October 9, 2008Inventors: Tomoyasu Oike, Takaya Yamauchi, Akihiko Yazaki, Tsunetaka Ema, Kenichi Nakazawa, Yasuhiko Hoshino
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Patent number: 4873533Abstract: A marker for positioning near a buried object wherein the marker can be detected to locate the buried object. The marker includes a passive resonant type antenna which becomes inoperative when the initial position for the buried marker is changed. A lead wire and/or a mercury switch that is a part of the antenna serve to make the antenna inoperative due to such change in the initial position of the marker.Type: GrantFiled: October 9, 1987Date of Patent: October 10, 1989Assignee: Minnesota Mining and Manufacturing CompanyInventor: Tomoyasu Oike