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).

  • Publication number: 20130209667
    Abstract: When measuring the molecular mass distribution of conductive aniline polymer of formula (1) by GPC and converting its retention time into molecular mass (M) in terms of sodium polystyrene sulfonate, for the molecular mass (M), the area ratio (X/Y) of the area (X) of a region of 15,000 Da or more to the area (Y) of a region of less than 15,000 Da is 1.20 or more. A method for producing such a polymer includes: polymerization step (Z1) where specific aniline derivative (A) is polymerized in a solution containing basic compound (B), solvent (C), and oxidizing agent (D) at a liquid temperature lower than 25° C.; or polymerization step (Z2) where specific aniline derivative (A) and oxidizing agent (D) are added to and polymerized in a solution of a conductive aniline polymer (P-1) with a unit of formula (1) dissolved or dispersed in a solvent (C).
    Type: Application
    Filed: October 25, 2011
    Publication date: August 15, 2013
    Applicant: Mitsubishi Rayon Co., Ltd.
    Inventors: Kohei Yamada, Yasushi Horiuchi, Yukiko Hachiya, Masashi Uzawa, Takahiro Sakai, Tamae Takagi
  • Publication number: 20130170117
    Abstract: A mobile phone includes a housing (7) formed by an upper housing part and a lower housing part that are integrally structured. At least a part of an upper surface of the housing (7) is made open to form an upper surface opening (11). Inside the housing (7), inner mounted components (a circuit board (8), a key switch board (9), or a battery) are mounted. The upper surface opening (11) of the housing (7) is covered with a key sheet (12). A method for assembling the mobile phone includes inserting the inner mounted components through the upper surface opening (11) into the inside of the housing (7) to be mounted inside the housing (7), and then covering the upper surface opening (11) with the key sheet (12).
    Type: Application
    Filed: October 20, 2011
    Publication date: July 4, 2013
    Applicant: NEC CORPORATION
    Inventors: Takahiro Sakai, Yasuyuki Homma
  • Publication number: 20130012655
    Abstract: The present invention provides a conductive polymer in which, when being formed into a coating film, foreign materials are difficult to be generated even the passage of time and a quality control method for a conductive polymer and has a repeating unit which is represented by the following general formula (1). The present invention also provides a quality control method for conductive polymers wherein conductive polymers with an area ratio (Y/X) of 0.60 or less are selected. In the formula R1 to R4 are each independently —H, a linear or branched alkyl group having 1 to 24 carbon atoms, a linear or branched alkoxy group having 1 to 24 carbon atoms, an acidic group, a hydroxyl group, a nitro group, —F, —Cl, —Br or —I; and at least one of R1 to R4 is an acidic group or a salt thereof.
    Type: Application
    Filed: March 23, 2011
    Publication date: January 10, 2013
    Applicant: Mitsubishi Rayon Co., Ltd.
    Inventors: Takahiro Sakai, Tamae Takagi, Akira Yamakazi, Yasushi Horiuchi, Mamiko Takahara, Masaki Nakayama, Manabu Hoshino, Hiroaki Iriyama, Fumino Momose
  • Publication number: 20120238158
    Abstract: 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: Application
    Filed: March 24, 2011
    Publication date: September 20, 2012
    Applicant: OMRON CORPORATION
    Inventors: Hitoshi Yoshida, Hidekazu Yoshioka, Takahiro Sakai, Yoshihiro Shimizu, Toshio Yamashita
  • Publication number: 20120208603
    Abstract: 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: Application
    Filed: October 18, 2010
    Publication date: August 16, 2012
    Applicant: NEC CORPORATION
    Inventors: Takahiro Sakai, Toshiki Yamanaka
  • Publication number: 20120119129
    Abstract: 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 th
    Type: Application
    Filed: August 29, 2011
    Publication date: May 17, 2012
    Inventors: Takahiro Sakai, Hironori Matsuzawa, Shuji Izumo, Kimihito Sasao
  • Publication number: 20110228491
    Abstract: 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: Application
    Filed: November 24, 2009
    Publication date: September 22, 2011
    Applicant: NEC CORPORATION
    Inventors: Takahiro Sakai, Toshiki Yamanaka, Hiroshi Yamada
  • Publication number: 20110222248
    Abstract: 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: Application
    Filed: November 6, 2009
    Publication date: September 15, 2011
    Applicant: NEC CORPORATION
    Inventors: Takahiro Sakai, Toshiki Yamanaka, Hiroshi Yamada
  • Publication number: 20110209954
    Abstract: 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 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: Application
    Filed: August 26, 2009
    Publication date: September 1, 2011
    Inventors: Takahiro Sakai, Toomoyoshi Ohnuki, Takao Nakai
  • Publication number: 20110195663
    Abstract: 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: Application
    Filed: January 25, 2011
    Publication date: August 11, 2011
    Applicant: FeliCa Networks, Inc.
    Inventors: Takahiro Sakai, Jun Tada, Hiroyuki Nagasawa, Hiroshi Nakamura
  • Publication number: 20110109996
    Abstract: 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: Application
    Filed: December 18, 2009
    Publication date: May 12, 2011
    Inventors: Tetsuya Nakamura, Takahiro Sakai, Masahiko Katoh, Yasushi Inoue, Tetsuya Nakatsuka, Satoshi Kaneko, Masashi Okubo
  • Publication number: 20110060637
    Abstract: Distribution information is stored in an information processing apparatus and includes benefit information. A coupon identifier (ID), which identifies the benefit information, is stored in a memory disposed within an information processing terminal. A request for the coupon ID is transmitted from the information processing apparatus to the information processing terminal and is received at the information processing terminal. The coupon ID is read from the memory disposed within the information processing terminal based on the received request, is transmitted from the information processing terminal to the information processing apparatus, and is received at the information processing apparatus.
    Type: Application
    Filed: August 24, 2010
    Publication date: March 10, 2011
    Applicant: FeliCa Networks, Inc.
    Inventors: Takahiro Sakai, Hiroshi Nakamura, Hiromoto One, Hiroyuki Nagasawa, Tatsufumi Tanabe
  • Publication number: 20100313580
    Abstract: An atomizing electrode includes: a trunk unit made to be tabular-shaped and almost rectangular-shaped for receiving water dropped from water supply means in a direction of gravitational force and delivering the water; and a top end atomizing unit which is a plate-shaped projection formed so as to be projected from a side surface of the trunk unit and formed unitedly with the trunk unit. The trunk unit of the atomizing electrode extends a long-side direction in a horizontal direction, is provided below the cooling unit with a space of a predetermined distance so as not to contact the cooling unit, and is arranged so that when the cooling unit is projected in the direction of gravitational force, a width of the cooling unit in a horizontal direction should be included in a width of a long-side direction of a top surface of the trunk unit exposed to the cooling unit.
    Type: Application
    Filed: May 18, 2010
    Publication date: December 16, 2010
    Applicant: Mitsubishi Electric Corporation
    Inventors: Reiji MORIOKA, Takahiro Sakai
  • Publication number: 20100220458
    Abstract: 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: Application
    Filed: October 16, 2008
    Publication date: September 2, 2010
    Applicant: NEC CORPORATION
    Inventors: Takahiro Sakai, Seiichirou Gotou, Toshiki Yamanaka
  • Publication number: 20100162522
    Abstract: It is an object of the present invention to provide a damper device which can facilitate an operation to incorporate it into a storage device including an openable/closable member. The damper device includes a cylindrical-shaped cylinder 10, a piston 20 reciprocatingly movable within the cylinder 10 in the axial direction, a piston rod 30 having one end connected to the piston 20 with the other end exposed from the cylinder 10, and a spring 40 for energizing the piston rod 30 in a direction to push it into the inside of the cylinder 10. The damper device further includes hold means which, against the energizing force of the spring 40, can hold a piston 20 connecting member at a moved position where it has been pulled out from the cylinder 10. The hold means includes, for example, a secured pawl 31 provided on the piston rod 30 and an engaging hole 55 formed in a cap 50.
    Type: Application
    Filed: July 8, 2008
    Publication date: July 1, 2010
    Applicant: PIOLAX INC.
    Inventors: Munsu Han, Sunghyun Byun, Takahiro Sakai
  • Publication number: 20090220707
    Abstract: 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: Application
    Filed: July 15, 2008
    Publication date: September 3, 2009
    Applicant: Nissan Chemical Industries Limited
    Inventors: Kimiaki Tsutsui, Takahiro Sakai, Kohei Goto
  • Patent number: 7524541
    Abstract: To provide a liquid crystal aligning agent useful to obtain a liquid crystal alignment film which exhibits a high voltage retention characteristic even under high temperature conditions and which has a low accumulation charge, and a liquid crystal display device which is less susceptible to lowering of contrast or to image persistence.
    Type: Grant
    Filed: August 28, 2003
    Date of Patent: April 28, 2009
    Assignee: Nissan Chemical Industries, Ltd.
    Inventors: Kimiaki Tsutsui, Takahiro Sakai, Kohei Goto
  • Patent number: 7189187
    Abstract: A control apparatus for a vehicular automatic transmission includes a control portion that executes a neutral control in which the control portion places the automatic transmission in a neutral state by reducing an application load on a frictional apply device inside the automatic transmission when the vehicle is stopped. The control portion ends the neutral control when a torque transmitted to the frictional apply device has been continually equal to, or greater than, a predetermined value for a consecutive predetermined of time. As a result, by considering the torque transmitted to the frictional apply device in addition to the continuation time of the neutral control, it is possible to more precisely grasp the state of the frictional apply device. In other words, it is possible to execute, as quickly as possible, neutral control for an extended period of time while ensuring durability of the frictional apply device.
    Type: Grant
    Filed: May 20, 2004
    Date of Patent: March 13, 2007
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Makoto Nakayashiki, Tooru Matsubara, Takahiro Sakai, Yoshio Hasegawa, Yoshikazu Tanaka
  • Publication number: 20060142538
    Abstract: 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: Application
    Filed: December 10, 2003
    Publication date: June 29, 2006
    Applicant: Nissan Chemical Industries, Ltd.
    Inventors: Kimiaki Tsutsui, Takahiro Sakai, Kohei Goto
  • Publication number: 20060051525
    Abstract: To provide a liquid crystal aligning agent useful to obtain a liquid crystal alignment film which exhibits a high voltage retention characteristic even under high temperature conditions and which has a low accumulation charge, and a liquid crystal display device which is less susceptible to lowering of contrast or to image persistence.
    Type: Application
    Filed: August 28, 2003
    Publication date: March 9, 2006
    Inventors: Kimiaki Tsutsui, Takahiro Sakai, Kohei Goto