Patents by Inventor Takahiro Sakai
Takahiro Sakai 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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Publication number: 20150053851Abstract: An optical encoder light shielding plate has a plurality of bridge parts provided in parallel, each of the plurality of bridge parts having a metallic layer, and a slit formed between the plurality of bridge parts. The slit is configured to have light incident therefrom. In the metallic layer, a master-side surface on an exposed surface side of a conductive master body is arranged on a light incident direction side. The metallic layer is obtained such that a plurality of cavities are provided in parallel on the exposed surface of the conductive master body. A voltage is applied while the conductive master body is dipped in an electrolytic solution. The metallic layer is electrodeposited on the exposed surface of the conductive master body in the cavities.Type: ApplicationFiled: July 31, 2014Publication date: February 26, 2015Inventors: Rikuo Kawamura, Hideaki Ozaki, Hirotada Teranishi, Takahiro Sakai
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Publication number: 20150031234Abstract: A connection terminal has a movable contact which projects outside from a contact hole of a housing such that the movable contact can be pressed, and at least two curved portions connected to each other through a connecting portion. Each of the curved portions is pushed and widened by a load applied to the movable contact.Type: ApplicationFiled: March 14, 2013Publication date: January 29, 2015Applicant: OMRON CorporationInventors: Jiro Koyama, Hirotada Teranishi, Takahiro Sakai
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Patent number: 8874036Abstract: There is provided a mobile terminal including: a contactless communication unit transmitting an IC identifier to a reader-writer that carries out contactless communication and receiving link information including the IC identifier from the reader-writer; and a wireless communication unit accessing a server based on the link information, transmitting the link information to the server, transmitting the IC identifier to the server separately to the link information, and operable, when the server has judged based on the IC identifier that contactless communication with the reader-writer and access to the server were both carried out using a same mobile terminal owned by a user, to receive information relating to privilege available to the user on a service used by the user from the server apparatus.Type: GrantFiled: January 25, 2011Date of Patent: October 28, 2014Assignee: FeliCa Networks, Inc.Inventors: Takahiro Sakai, Jun Tada, Hiroyuki Nagasawa, Hiroshi Nakamura
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Publication number: 20140301046Abstract: A mounting structure of a flexible printed circuit board and a sliding-type electronic device is provided by which a too large increase in thickness of devices can be avoided and a pair of housings can be slid relatively in a bending and slanting direction. In the mounting structure, an upper housing 12 and a lower housing 22 coupled in a freely slidable manner are electrically connected to each other by a flexible printed circuit board folded back to be routed between slide facing surfaces 12b and 22a of both the housings and the height of a side wall surface 12c and 22c of the upper housing and lower housing changes in a bending manner along the direction of freely sliding and, in the slide facing surfaces of the upper housing and lower housing, concave space portions 15 and 25 to accommodate the change in curvature and in position of a folding-back portion 31a caused by sliding motion between the upper housing and lower housing are disposed.Type: ApplicationFiled: June 23, 2014Publication date: October 9, 2014Applicant: NEC CORPORATIONInventors: Takahiro SAKAI, Toshiki YAMANAKA, Hiroshi YAMADA
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Publication number: 20140235112Abstract: A contactor including a bellows body, a fixed portion, connected to one end of the bellows body and provided with at least one fixed touch piece extending along the bellows body, and a movable portion, connected to the other end of the bellows body, where the movable portion is configured to be depressed to compress the bellows body and to bring the movable portion and/or the bellows body into contact with the fixed touch piece of the fixed portion.Type: ApplicationFiled: March 15, 2012Publication date: August 21, 2014Applicant: OMRON CORPORATIONInventors: Takahiro Sakai, Yoshinobu Hemmi
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Patent number: 8811036Abstract: A frame member (130) includes a bottom plate part (132) facing the lower surface of a display device (110), a wall part (133) extending upwardly from an edge part of the bottom plate part (132), and a top plate part (134) extending from an upper edge part of the wall part in a horizontal direction. An aperture (131) into which a wiring member (120) connected to the display device (110) is inserted is formed between the wall part (133) and the top plate part (134). The frame member (130) retains and supports the display device (110).Type: GrantFiled: October 16, 2008Date of Patent: August 19, 2014Assignee: NEC CorporationInventors: Takahiro Sakai, Seiichirou Gotou, Toshiki Yamanaka
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Publication number: 20140227912Abstract: A contactor including a bellows body, a fixed portion connected to one end of the bellows body, and a movable portion, connected to the other end of the bellows body, where the movable portion is configured to be depressed to compress the bellows body and to bring a connecting projection, projectingly provided on the bellow body, into contact with the bellows body itself.Type: ApplicationFiled: March 15, 2012Publication date: August 14, 2014Applicant: OMRON CorporationInventors: Takahiro Sakai, Yoshinobu Hemmi
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Publication number: 20140225638Abstract: A contactor including a bellows body, a fixed portion connected to one end of the bellows body, and a movable portion connected to the other end of the bellows body, where the bellows body, the fixed portion and the movable portion are integrally molded by electroforming, and the movable portion is configured to be depressed to compress the bellows body, so that adjacent arc portions of the bellows body are brought into contact with each other to cause a short circuit.Type: ApplicationFiled: March 15, 2012Publication date: August 14, 2014Applicant: OMRON CORPORATIONInventors: Takahiro Sakai, Yoshinobu Hemmi
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Publication number: 20140218062Abstract: A contactor including a bellows body, a fixed portion connected to one end of the bellows body, a movable portion connected to the other end of the bellows body, and a movable touch piece that extending from at least one side edge along the bellows body, where the movable portion is configured to be depressed to compress the bellows body and to bring a movable contact point, located at a free end of the movable touch piece, into contact with the fixed portion.Type: ApplicationFiled: March 15, 2012Publication date: August 7, 2014Applicant: OMRON CORPORATIONInventors: Takahiro Sakai, Yoshinobu Hemmi
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Publication number: 20140205495Abstract: An apparatus includes an air path housing, a charging-unit high-voltage electrode to charge airborne microorganisms introduced in the air path housing, a charging-unit ground electrode disposed so as to face the charging-unit high-voltage electrode, a hydrophilic filter to capture the airborne microorganisms charged by the charging-unit high-voltage electrode, a capturing/inactivating-unit high-voltage electrode to polarize the hydrophilic filter, and a capturing/inactivating-unit ground electrode disposed so as to face the capturing/inactivating-unit high-voltage electrode.Type: ApplicationFiled: October 18, 2012Publication date: July 24, 2014Applicant: Mitsubishi Electric CorporationInventors: Koji Ota, Yasutaka Inanaga, Akira Morikawa, Takahiro Sakai
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Patent number: 8696392Abstract: A contact includes a plate with a width that ranges from 0.1 mm or more to 1 mm or less, and a stress concentrated place, where a surface roughness (Ra) on the stress concentrated place is 0.2 ?m or less. When samples whose surface roughness Ra is 0.040 ?m, 0.080 ?m, 0.120 ?m, and 0.180 ?m were used to study a number of repetitive fracture times, as the surface roughness Ra was smaller, the number of repetitive fracture times became larger. Particularly, it is found that the surface roughness Ra may be 0.200 ?m or less in order to satisfy 3000 times as a number of operating times of the battery connector. Further, the surface roughness Ra may be 0.080 ?m or less in order to satisfy 6000 times as the number of operating times when a safety factor is 2.Type: GrantFiled: March 24, 2011Date of Patent: April 15, 2014Assignee: OMRON CorporationInventors: Hitoshi Yoshida, Hidekazu Yoshioka, Takahiro Sakai, Yoshihiro Shimizu, Toshio Yamashita
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Patent number: 8699187Abstract: A manufacturing method for a head-stack assembly. The method includes preparing a head-stack assembly. The method further includes placing a connection pad forming surface of a connector tab formed on an end of the trace so as to be positioned opposite to an edge of a circuit board; sliding an elastic component along a backside of the connection pad forming surface; and, stopping the elastic component on the backside and pressing the backside with the elastic component so as to press the connection pad forming surface against the edge. In addition, the method includes metal-joining the connector tab and a connection pad of the circuit board by applying heat to a connection pad of the connector tab and the connection pad on the circuit board while pressing the connection pad forming surface against the edge with the elastic component; and, removing the elastic component after the metal-joining.Type: GrantFiled: December 18, 2009Date of Patent: April 15, 2014Assignee: HGST Netherlands B.V.Inventors: Tetsuya Nakamura, Takahiro Sakai, Masahiko Katoh, Yasushi Inoue, Tetsuya Nakatsuka, Satoshi Kaneko, Masashi Okubo
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Patent number: 8700099Abstract: There are provided a hinge unit and portable terminal, even when a display housing is inverted to respond to demands for thin and light weight structure and high design quality, its display housing is always in a proper position. The display housing 1 has a display device 2 at its display housing front 1a. The display device 2 is made up of, for example, a liquid crystal display device and performs predetermined displaying. The shaft fitting section 3 is fitted in an end terminal region of one side of the display housing. A shaft 4 is inserted into the shaft fitting section 3 to support the display housing 1 in a manner to be freely inverted and fitted to the shaft fitting section 3 so that an axial center of the inverting axis forms a predetermined angle with a display surface of the display device 2.Type: GrantFiled: October 18, 2010Date of Patent: April 15, 2014Assignee: NEC CorporationInventors: Takahiro Sakai, Toshiki Yamanaka
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Patent number: 8678342Abstract: An air-operated valve which can keep the impact at the time a valve part sits on a seat from causing material from shedding and thereby generating particles which contaminate a controlled fluid and thereby can maintain a high cleanliness of the controlled fluid, that is, an air-operated valve which is provided with a valve chamber body which has a valve chamber which forms a seat, a valve mechanism which is provided with a valve part which seals the seat and with a diaphragm in the valve chamber, and a housing body which houses a drive mechanism which uses working air to make the valve mechanism advance and retract to drive and control it to open and close the seat, the drive mechanism provided with a first piston, a first spring which biases the first piston, a second piston which is slidably housed in the housing body and slidably houses the first piston inside it and which pushes the first piston, and a second spring which biases the second piston, the spring force of the second spring being made larger thType: GrantFiled: August 29, 2011Date of Patent: March 25, 2014Assignee: Advance Denki Kougyou Kabushiki KaishaInventors: Takahiro Sakai, Hironori Matsuzawa, Shuji Izumo, Kimihito Sasao
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Publication number: 20140043731Abstract: A conductive composition according to the present invention contains a conductive polymer (A) having a sulfonic acid group and/or a carboxyl group; and an alkali metal hydroxide and/or an alkaline earth metal hydroxide (B). In such a conductive composition, the amount of the hydroxide (B) is set at 0.2˜0.65 mol per 1 mol of a repeating unit that contains a sulfonic acid group and/or a carboxyl group in the conductive polymer (A).Type: ApplicationFiled: April 20, 2012Publication date: February 13, 2014Applicant: Mitsubishi Rayon Co., Ltd.Inventors: Kohei Yamada, Takahiro Sakai, Masashi Uzawa, Youko Sasata, Akira Yamazaki
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Publication number: 20140038469Abstract: A connection terminal includes a movable contact portion protruding out of a contact hole of a housing of the connection terminal, and is adapted to be pressed; a first curved portion continuously formed, the first curved portion including a free end portion having a fixed portion; a second curved portion continuously formed, the second curved portion including a free end portion having the movable contact portion; a rigid coupling portion interposed between the first curved portion and the second curved portion, and an abutment portion disposed on an opposite side to the second curved portion with respect to the movable contact portion, and adapted to be displaced toward the rigid coupling portionType: ApplicationFiled: July 24, 2013Publication date: February 6, 2014Applicant: OMRON CORPORATIONInventors: Takahiro SAKAI, Hirotada TERANISHI
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Publication number: 20140023798Abstract: To provide a liquid crystal aligning agent useful to obtain a liquid crystal alignment film excellent in liquid crystal alignment properties, alignment controlling power and rubbing resistance, having high voltage retention characteristics and having reduced charge accumulation, and a liquid crystal display device which is less susceptible to display failure, to lowering of contrast or to image persistence. A liquid crystal aligning agent comprising a low resistance polyimide precursor having a volume resistivity of from 1×1010 to 1×1014 ?cm when formed into a film, and a high alignment polyimide precursor or polyimide having a specific structure, and a liquid crystal display device employing this liquid crystal aligning agent.Type: ApplicationFiled: September 26, 2013Publication date: January 23, 2014Applicant: Nissan Chemical Industries LimitedInventors: Kimiaki Tsutsui, Takahiro Sakai, Kohei Goto
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Publication number: 20130313729Abstract: A humidifier includes a first electrode that is a porous metal body having a three-dimensional porous structure, a second electrode that is a conductor electrode arranged opposite to the first electrode with a space of a predetermined distance from the first electrode, a power supply that forms an electric field in the space between the first electrode and the second electrode, a water supply unit that supplies water to the first electrode, and a fan that sends air to the space to evaporate and disperse the water that is supplied from the water supply unit to the first electrode and retained by the first electrode.Type: ApplicationFiled: August 20, 2012Publication date: November 28, 2013Applicant: Mitsubishi Electric CorporationInventors: Takahiro Sakai, Akira Morikawa, Koji Ota, Yasutaka Inanaga, Yasuhiro Tanimura, Hiroshi Tsutsumi
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Patent number: 8570756Abstract: A sliding electronic apparatus that prevents foreign matter from entering a housing is provided. In the apparatus, upper housing 1 and lower housing 2 are slidably coupled, and it is switched by sliding one of upper housing 1 and lower housing 2 with respect to the other, a closed state in which operation section 2b provided on lower housing 2 is covered by upper housing 1 and an open state in which operation section 2b is exposed. The apparatus includes opening 1c formed in a lower surface of upper housing 1, opening 2c formed in an upper surface of lower housing 2, and FPC 3 for electrically connecting wiring board 9 and wiring board 10. FPC 3 includes cover portion 3a mounted on the lower surface of upper housing 1 so as to cover opening 1c and cover portion 3b mounted on the upper surface of lower housing 2 so as to cover opening 2c. Cover portion 3a is electrically connected to wiring board 9 in upper housing 1, and cover portion 3b is electrically connected to wiring board 10 in lower housing 2.Type: GrantFiled: November 24, 2009Date of Patent: October 29, 2013Assignee: NEC CorporationInventors: Takahiro Sakai, Toshiki Yamanaka, Hiroshi Yamada
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Patent number: 8528708Abstract: An air damper is provided which can exhibit an appropriate braking force in accordance with an input load. There is provided an air damper including: a tubular cylinder 1 in which both end portions are opened; a piston 2 which moves within the cylinder 1; and a cap 3 which closes a one-end opening of the cylinder 1, wherein the cylinder 1 has an annular seal surface 4 formed on a circumferential surface of the one-end opening, wherein the cap is mounted on the one-end opening side of the cylinder 1 so as to be moveable or deformable along an axial direction of the cylinder 1, wherein the cap is brought into contact with or separated from the seal surface 4 in accordance with a pressure change due to a movement of the piston 2 within the cylinder 1, and wherein a first orifice 14 is opened in a base plate 12 of the cap, characterized in that: a second orifice having an inlet area smaller than the first orifice is defined between the cap 3 and the cylinder 1 during an operation of the first orifice 14.Type: GrantFiled: August 26, 2009Date of Patent: September 10, 2013Assignee: Piolax Inc.Inventors: Takahiro Sakai, Tomoyoshi Ohnuki, Takao Nagai