Patents by Inventor Takashi Yajima

Takashi Yajima 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: 20090323285
    Abstract: A heat transport device includes an airtight container, a working fluid contained in the airtight container, and a plurality of plate-like members including a first plate-like member and a second plate-like member adjacent to the first plate-like member, the plate-like members each having a first hole having a first opening area and a second hole having a second opening area smaller than the first opening area, the plate-like members being layered in the airtight container so that the first hole of the first plate-like member and the first hole of the second plate-like member are communicated with each other, to retain the working fluid in a liquid phase by applying a capillary force to the working fluid, and so that an opening of the second hole is located within an opening of the first hole, to transfer the working fluid vaporized into a gas phase in the layered direction.
    Type: Application
    Filed: June 23, 2009
    Publication date: December 31, 2009
    Applicant: Sony Corporation
    Inventors: Hiroyuki RYOSON, Takashi YAJIMA, Mitsuo HASHIMOTO, Toshiro OOTA, Tatsuhiko SHIGEMOTO, Kazuo GOTO
  • Patent number: 7500660
    Abstract: To provide a vehicle stabilizer for high stress in which fatigue life of a bending portion can be prolonged and which can exhibit excellent durability. A configuration of a bending portion 16, to which a maximum stress is applied and which is the most fragile part, of a vehicle stabilizer for high stress 10 is formed in a state which satisfies conditions: 0<??4 and (?×d/R)?2 wherein d represents a material diameter before bending process, R represents a radius of bending of the bending portion 16, d1 represents a short axis dimension of a cross section of the bending portion 16, d2 represents a long axis dimension of a cross section of the bending portion 16, and a flat rate ? of a cross section of the bending portion 16 is represented by the following equation: ?=(d2?d1)/d2×100.
    Type: Grant
    Filed: August 20, 2004
    Date of Patent: March 10, 2009
    Assignee: Mitsubishi Steel Mfg. Co., Ltd.
    Inventors: Teruhisa Hanamura, Hidetaka Narishima, Takashi Yajima
  • Patent number: 7464591
    Abstract: A semiconductor acceleration sensor having beam parts formed in substantially L-shape to surround a weight part, wherein formed to surround a square part, as seen in plan view and constituting the weight part, are two elongated L-shaped beam parts, at locations close to proximal end portions of which are formed protruding portions protruding from a fixed part toward the weight part, and receiving recessed portions protruding from the weight part toward the fixed part to surround the protruding portions. The protruding portions have an outer shape substantially the same as an inner wall surface of the receiving recessed portions so that movements of the weight part in any directions in a horizontal direction perpendicular to an up and down direction are limited as a result of reception of the protruding portions by the receiving recessed portions.
    Type: Grant
    Filed: January 20, 2006
    Date of Patent: December 16, 2008
    Assignee: Panasonic Electric Works Co., Ltd.
    Inventors: Yoshihisa Fukuda, Kouji Sakai, Atsushi Ishigami, Eiichi Furukubo, Ryosuke Meshii, Takashi Yajima
  • Publication number: 20080173834
    Abstract: An object of the present invention is to provide a malfunction prevention manual valve capable of preventing a malfunction while ensuring operability in opening and closing the valve. To achieve the object, a malfunction prevention manual valve 1 of the present invention includes a lock mechanism including a parallel pin 75 held against rotation relative to a housing 71, and a sub-handle 73 provided in a handle 72 in such a manner as to be engageable with the parallel pin 75. The parallel pin 75 or the sub-handle 73 is urged by a lock spring 77, bringing the sub-handle in engagement with the parallel pin 75 to restrain rotation of the handle 72. A malfunction prevention manual valve 2 of another aspect includes a lock mechanism including a spring pin 175 held against rotation relative to a housing 171, a cam groove 172a formed in a handle 172 to receive a spring pin 175, and a sub-handle 173 provided integral with the handle 172 and urged by a spring 177.
    Type: Application
    Filed: April 13, 2005
    Publication date: July 24, 2008
    Applicant: CKD CORPORATION
    Inventors: Tatsuhito Aoyama, Takashi Yajima, Masayoshi Morimoto
  • Publication number: 20080047636
    Abstract: Method of manufacturing a metal gasket including a base plate having at least fluid passage holes and circular beads surrounding the fluid passage holes, the base plate being formed by providing a rubber coating layer on a surface of a metal plate with a base coat and an adhesive interposed therebetween. A metal plate having low-temperature age-hardening characteristics is used as the metal plate of the base plate. After the base coat is applied to the metal plate and dried at a temperature lower than a low aging temperature of the metal plate, press-working of the circular beads is performed on the metal plate. Thereafter, the metal plate is age-hardened while burning the base coat at the low aging temperature of the metal plate. A metal gasket having excellent durability and circular beads which are hardly broken even when crushed, is obtained.
    Type: Application
    Filed: August 23, 2005
    Publication date: February 28, 2008
    Inventors: Hiromitsu Sasaki, Norifumi Misumi, Takashi Yajima, Masabumi Miyashita, Takashi Katsurai, Tadao Nishiyama, Yasunori Murakami
  • Publication number: 20080022770
    Abstract: A semiconductor acceleration sensor having beam parts formed in substantially L-shape to surround a weight part, wherein formed to surround a square part, as seen in plan view and constituting the weight part, are two elongated L-shaped beam parts, at locations close to proximal end portions of which are formed protruding portions protruding from a fixed part toward the weight part, and receiving recessed portions protruding from the weight part toward the fixed part to surround the protruding portions. The protruding portions have an outer shape substantially the same as an inner wall surface of the receiving recessed portions so that movements of the weight part in any directions in a horizontal direction perpendicular to an up and down direction are limited as a result of reception of the protruding portions by the receiving recessed portions.
    Type: Application
    Filed: January 20, 2006
    Publication date: January 31, 2008
    Inventors: Yoshihisa Fukuda, Kouji Sakai, Atsushi Ishigami, Eiichi Furukubo, Ryosuke Meshii, Takashi Yajima
  • Publication number: 20070290154
    Abstract: To provide a low-cost air-operated valve, an air-operated valve comprises a piston, a cylinder in which the piston is allowed to slide by operation air, and a valve section to be driven by sliding movement of the piston. The cylinder includes an outer member having a hollow portion and an inner member loaded in the hollow portion of the outer member to define a piston chamber in which the piston is allowed to slide.
    Type: Application
    Filed: May 21, 2007
    Publication date: December 20, 2007
    Applicant: CKD CORPORATION
    Inventors: Tatsuhito Aoyama, Katsunori Hirose, Takashi Yajima, Tadaichi Hamada
  • Publication number: 20070063473
    Abstract: To provide a vehicle stabilizer for high stress in which fatigue life of a bending portion can be prolonged and which can exhibit excellent durability. A configuration of a bending portion 16, to which a maximum stress is applied and which is the most fragile part, of a vehicle stabilizer for high stress 10 is formed in a state which satisfies conditions: 0<??4 and (?×d/R)?2, wherein d represents a material diameter before bending process, R represents a radius of bending of the bending portion 16, d1 represents a short radius of a cross section of the bending portion 16, d2 represents a long radius of a cross section of the bending portion 16, and a flat rate ?0 of a cross section of the bending portion 16 is represented by the following equation: ?=(d2?d1)/d2×100. Accordingly, concentration of shearing stress on the bending portion 16 during a load input can be suppressed to prevent the vehicle stabilizer for high stress 10 from being broken due to the concentration of stress on the bending portion 16.
    Type: Application
    Filed: August 20, 2004
    Publication date: March 22, 2007
    Inventors: Teruhisa Hanamura, Hidetaka Narishima, Takashi Yajima
  • Publication number: 20070002184
    Abstract: According to one embodiment, a key code of a key selected from a plurality of universal keys and information representing a function selected from a plurality of functions held by a main device are stored in a storage section in association with each other. When a key code transmitted from a remote controller is of a key corresponding to a specific function, a function corresponding to the key code is executed on the basis of a stored content of the storage section.
    Type: Application
    Filed: June 29, 2006
    Publication date: January 4, 2007
    Inventor: Takashi Yajima
  • Publication number: 20060232017
    Abstract: A metal gasket for a cylinder head has two base plates each constructed from a metal plate and layered over each other, an auxiliary plate constructed from a metal plate and interposed between the base plates, and hard metal-plated layers. The base plates each have cylinder holes, annular beads, coolant holes, and an outer peripheral bead. The cylinder holes correspond with the bore of each cylinder. The annular beads have an angled cross-sectional shape. The coolant holes correspond with a coolant jacket of the cylinder block and with a coolant hole of the cylinder head. The outer peripheral bead has a cross-sectional shape sloping on one side and surrounds the beads and the coolant holes. Each of the layers is extended from a position more radially inward than an annular bead of a base plate to a position radially outward.
    Type: Application
    Filed: March 17, 2004
    Publication date: October 19, 2006
    Inventors: Yoshiaki Hamada, Takashi Yajima, Yasunori Murakami, Takashi Katsurai, Masamune Tabata
  • Publication number: 20060065385
    Abstract: A heat transport device having a composite structure that is readily manufactured and a method for manufacturing such a heat transport device are provided. The heat transport device includes a first base plate having a liquid suction and retention unit for sucking and retaining a liquid-phase working fluid by capillary force; a second base plate having a face provided with a first concavity functioning as a vaporization chamber for vaporizing the working fluid, a second concavity functioning as a liquefaction chamber for liquefying the working fluid, a first ditch for transporting the vaporized working fluid, a second ditch for transporting the liquefied working fluid, the second base plate comprising a material having a thermal conductivity lower than that of silicon; and a thermoplastic or thermosetting resin material for bonding the first and second base plates.
    Type: Application
    Filed: December 4, 2003
    Publication date: March 30, 2006
    Applicant: Sony Corporation
    Inventors: Minehiro Tonosaki, Eisaku Kato, Masakazu yajima, Takashi Yajima
  • Publication number: 20050092466
    Abstract: A heat-transport device, which is suitable for reduction in volume and thickness, includes a wick that generates capillary action to reflux working fluid and a line in which a liquid- or vapor-phase working fluid flows, wherein the surface of at least one of the wick and the line are subjected to coating treatment by ion implantation, thermal oxidation, or steam oxidation to prevent the generation of gas, particularly hydrogen.
    Type: Application
    Filed: December 8, 2003
    Publication date: May 5, 2005
    Applicant: Sony Corporation
    Inventors: Minehiro Tonosaki, Motosuke Ohmi, Eisaku Kato, Masakazu Yajima, Takashi Yajima
  • Patent number: 6840310
    Abstract: The present invention provides a cooling device having improved cooling performance and providing higher flexibility, an electronic apparatus and an acoustic apparatus employing the cooling device, and a method for producing the cooling device. The cooling device is provided with an evaporator that is capable of cooling an object to be cooled, and a condenser that is capable of releasing to the outside heat that has been absorbed during the cooling by the evaporator. A vapor-phase conduit and a liquid-phase conduit, both of which are made of fluorocarbon resin and through which an operating medium flows, are disposed between and coupled to the evaporator and the condenser, thereby circulating the operating medium.
    Type: Grant
    Filed: June 30, 2003
    Date of Patent: January 11, 2005
    Assignee: Sony Corporation
    Inventors: Minehiro Tonosaki, Eisaku Kato, Motosuke Ohmi, Takashi Yajima
  • Publication number: 20040069459
    Abstract: The present invention provides a cooling device having improved cooling performance and providing higher flexibility, an electronic apparatus and an acoustic apparatus employing the cooling device, and a method for producing the cooling device. The cooling device is provided with an evaporator that is capable of cooling an object to be cooled, and a condenser that is capable of releasing to the outside heat that has been absorbed during the cooling by the evaporator. A vapor-phase conduit and a liquid-phase conduit, both of which are made of fluorocarbon resin and through which an operating medium flows, are disposed between and coupled to the evaporator and the condenser, thereby circulating the operating medium.
    Type: Application
    Filed: June 30, 2003
    Publication date: April 15, 2004
    Applicant: Sony Corporation
    Inventors: Minehiro Tonosaki, Eisaku Kato, Motosuke Ohmi, Takashi Yajima
  • Patent number: 6648296
    Abstract: A hand-operated valve with a locking mechanism is disclosed. This valve includes: a valve main body including a valve body, a valve seat, and a screw mechanism which is actuated to bring the valve body into contact/noncontact with the valve seat; a locking mechanism for preventing actuation of the screw mechanism during a time when the valve body is in contact with the valve seat to close the valve; an operating member connected to the valve main body, for actuating the screw mechanism for contact/noncontact operation of the valve body with respect to the valve seat to thereby close/open the valve; and a play providing mechanism interposed in a connection between the operating member and the valve main body, for preventing the actuation of the screw mechanism during a predetermined stage of operation of the operating member.
    Type: Grant
    Filed: April 3, 2002
    Date of Patent: November 18, 2003
    Assignee: CKD Corporation
    Inventors: Katsunori Hirose, Takashi Yajima
  • Publication number: 20020166985
    Abstract: A hand-operated valve with a locking mechanism is disclosed. This valve includes: a valve main body including a valve body, a valve seat, and a screw mechanism which is actuated to bring the valve body into contact/noncontact with the valve seat; a locking mechanism for preventing actuation of the screw mechanism during a time when the valve body is in contact with the valve seat to close the valve; an operating member connected to the valve main body, for actuating the screw mechanism for contact/noncontact operation of the valve body with respect to the valve seat to thereby close/open the valve; and a play providing mechanism interposed in a connection between the operating member and the valve main body, for preventing the actuation of the screw mechanism during a predetermined stage of operation of the operating member.
    Type: Application
    Filed: April 3, 2002
    Publication date: November 14, 2002
    Applicant: CKD CORPORATION
    Inventors: Katsunori Hirose, Takashi Yajima
  • Patent number: D527073
    Type: Grant
    Filed: June 22, 2004
    Date of Patent: August 22, 2006
    Assignee: CKD Corporation
    Inventors: Takashi Yajima, Katsunori Hirose
  • Patent number: D535549
    Type: Grant
    Filed: April 20, 2006
    Date of Patent: January 23, 2007
    Assignee: CKD Corporation
    Inventors: Takashi Yajima, Katsunori Hirose
  • Patent number: D541905
    Type: Grant
    Filed: April 20, 2006
    Date of Patent: May 1, 2007
    Assignee: CKD Corporation
    Inventors: Takashi Yajima, Katsunori Hirose
  • Patent number: D549077
    Type: Grant
    Filed: April 20, 2006
    Date of Patent: August 21, 2007
    Assignee: CKD Corporation
    Inventors: Takashi Yajima, Katsunori Hirose