Patents by Inventor Yamakawa

Yamakawa 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: 20140055002
    Abstract: A vibration power generator 110 including a first fixed substrate 111L, a second fixed substrate 111U, a movable substrate 112 which is vibratory relative to the first and second fixed substrates, a plurality of first electrodes 119a formed over the second fixed substrate, a plurality of second electrodes 119b formed on the movable substrate and opposed to the first electrodes, wherein one of the first electrode 119a and the second electrode 119b includes a film holding a charge, is fixed to a rotating body such that the first fixed substrate 111L, the second fixed substrate 111U and the movable substrate 112 are perpendicular to a radial direction of the rotating body and the first fixed substrate is disposed nearer to a rotational axis side of the rotating body.
    Type: Application
    Filed: October 5, 2012
    Publication date: February 27, 2014
    Applicant: PANASONIC CORPORATION
    Inventors: Hiroshi Nakatsuka, Keiji Onishi, Takehiko Yamakawa
  • Patent number: 8657173
    Abstract: In a gas combustion type nail driving device, a head part (3) which is disposed on the front surface of the main body is provided with (a) a guide tube (35) through which a rod (17) and a nail n pass; (b) a main guide body (36) on which the guide tube (35) is disposed; (c) a subguide (37) which makes a pair with the main guide body (36) and forms a nail feed space; (d) a feed motor (48); and (e) a gear unit (46) which is driven by the feed motor (47). The nail connecting body N is fed to the guide tube (35) by the feed gear (73).
    Type: Grant
    Filed: March 30, 2005
    Date of Patent: February 25, 2014
    Assignee: Japan Power Fastening Co,. Ltd.
    Inventors: Yasutsugu Uejima, Keiji Yamakawa
  • Patent number: 8653614
    Abstract: According to one embodiment, a memory device with magnetroresistive effect element is disclosed. The element includes first metal magnetic film (MMF) with nonmagnetic element and axis of easy magnetization perpendicular (EMP), first insulating film, first intermediate magnetic film between the first MMF and the first insulating film, second MMF on the first insulating film and including nonmagnetic elements, the second MMF having axis of EMP, second intermediate magnetic film between the first insulating film and the second MMF, and diffusion preventing film including metal nitride having barrier property against diffusion of the nonmagnetic elements between the first MMF and the first intermediate magnetic film.
    Type: Grant
    Filed: February 28, 2012
    Date of Patent: February 18, 2014
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Daisuke Ikeno, Koji Yamakawa, Katsuaki Natori, Yasuyuki Sonoda
  • Patent number: 8652252
    Abstract: A hydraulic composition comprising a water-soluble hydroxyalkyl alkyl cellulose, cement, aggregate, reinforcing fibers, and water is provided. The hydroxyalkyl alkyl cellulose has a degree of alkyl substitution of 1.2-1.7, the sum of the degree of alkyl substitution and the molar substitution of hydroxyalkyl is 1.5-2.0, and a proportion of glucose ring not substituted with alkyl and hydroxyalkyl groups per glucose ring unit is up to 10 mol %. The composition cures within a short time and is extrusion moldable even at elevated temperature.
    Type: Grant
    Filed: July 2, 2013
    Date of Patent: February 18, 2014
    Assignee: Shin-Etsu Chemical Co., Ltd.
    Inventors: Hidekazu Konishi, Rumiko Itoh, Tsutomu Yamakawa, Kazuhisa Hayakawa
  • Patent number: 8655572
    Abstract: The disclosure provides a control device of a spark-ignition gasoline engine. When an operating state of an engine body is within a low engine speed range, a controller operates a fuel pressure variable mechanism so that a fuel pressure is higher within a high engine load range compared to a low engine load range, the controller operates, within the high engine load range, a fuel injection mechanism to perform at least a fuel injection into the cylinder by a cylinder internal injection valve at a timing during a retard period from a late stage of a compression stroke to an early stage of an expansion stroke, and the controller operates, within the high engine load range, an ignition plug to ignite at a timing during the retard period and after the fuel injection.
    Type: Grant
    Filed: February 7, 2012
    Date of Patent: February 18, 2014
    Assignee: Mazda Motor Corporation
    Inventors: Kouhei Iwai, Masahisa Yamakawa, Noriyuki Ota, Kazuhiro Nagatsu, Takashi Youso, Kazutoyo Watanabe, Hiroyuki Kurita, Naoya Watanabe, Takaaki Nagano, Shuji Oba
  • Patent number: 8652783
    Abstract: A circular DNA is provided comprising endogenous DNA common to both genetically modified wheat and non-genetically modified wheat along with one or more pieces of DNA each having a sequence present specifically in a strain of genetically modified wheat. Also provided is a method for determining a mix rate of genetically modified wheat in a test sample.
    Type: Grant
    Filed: August 25, 2011
    Date of Patent: February 18, 2014
    Assignees: Nisshin Seifun Group Inc., Incorporated Administrative Agency National Agriculture and Food Research Organization
    Inventors: Akihiro Hino, Takashi Kodama, Mayu Iida, Hirohito Yamakawa, Satomi Nozaki, Katsuyuki Hayakawa
  • Publication number: 20140042568
    Abstract: A nonvolatile semiconductor memory device is provided with an MRAM chip including a magnetoresistive effect element having a reference layer whose magnetizing direction is set, a memory layer whose magnetizing direction is variable, and a nonmagnetic layer between these layers, and an enclosure having a thermal insulation area that covers part or the whole of the MRAM chip and prevents thermal fluctuation of the magnetization of the reference layer or memory layer.
    Type: Application
    Filed: March 7, 2013
    Publication date: February 13, 2014
    Applicant: Kabushiki Kaisha Toshiba
    Inventor: Koji YAMAKAWA
  • Publication number: 20140045636
    Abstract: A second shaft is configured by a shaft portion extending outside a housing in which a nutation gear mechanism is housed, a housing portion, and a cylindrical portion. A communicating hole, through which an outside and an inside of the housing portion communicate with each other, is formed in the shaft portion. A preload applying mechanism includes a preload adjusting plug that is screwed to the housing portion and is able to be operated from outside through the communicating hole, a wave washer compressed in accordance with a position of the preload adjusting plug, and a lock nut that is screwed to the housing portion of the second shaft so as to press the preload adjusting plug toward the nutation gear mechanism.
    Type: Application
    Filed: July 31, 2013
    Publication date: February 13, 2014
    Applicant: JTEKT CORPORATION
    Inventors: Hitoshi SASAKI, Satoshi MOTOYAMA, Tomonari YAMAKAWA, Masanori NATSUME
  • Publication number: 20140046133
    Abstract: A self-propelling device includes a drive unit and a toroid unit supported thereabout. The toroid unit includes a track structure of a toroid shape and a roller support sleeve inside the track structure. Three belt portions are provided in the track structure with high rigidity. The drive unit includes an inner sleeve for mounting on an introducer of an endoscope, and an outer sleeve supported around the inner sleeve. An inner surface of the roller support sleeve and an outer surface of the outer sleeve extend triangularly. Drive wheels are disposed upstream and downstream of respectively flat portions of the outer sleeve. Two follower rollers are disposed on respectively each of flat portions of the roller support sleeve. The drive wheels and follower rollers nip the belt portions of the track structure to move the track structure endlessly.
    Type: Application
    Filed: September 24, 2013
    Publication date: February 13, 2014
    Applicant: FUJIFILM CORPORATION
    Inventors: Takayuki NAKAMURA, Tsuyoshi ASHIDA, Shinichi YAMAKAWA, Yasunori OHTA, Charles Alan BRANTINGHAM
  • Patent number: 8650654
    Abstract: According to one embodiment, a memory device includes a third partial key write module, an encryption key write module, and a decryption module. The third partial key write module is configured to combine a second partial key received from the current host device with the first partial key in the partial key memory device and to write a generated third partial key into the volatile memory after the device authentication. The encryption key write module is configured to combine the third partial key with the second user authentication information and to write a generated encryption key into the volatile memory after the user authentication. The decryption module is configured to decrypt the encrypted data based on the encryption key in the volatile memory based on a read request received from the current host device and to output obtained data to the current host device when the user authentication has succeeded.
    Type: Grant
    Filed: June 27, 2011
    Date of Patent: February 11, 2014
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Yoshiyuki Kudoh, Takashi Kuzuhara, Teruji Yamakawa, Kenichi Numata
  • Patent number: 8646503
    Abstract: A pneumatic tire includes a tread portion extending in a tire circumferential direction and a pair of sidewall sections on both sides of the tread portion, respectively, with regard to a tire width direction. At least one of the sidewall sections includes partitions and a plurality of first and second minute regions. The partitions have a prescribed spacing in the tire circumferential direction and extend linearly in a tire radial direction. The first and second minute regions are provided in each of a plurality of partitioned regions and are visually distinguishable from surrounding sidewall surface regions. The first minute regions are also visually distinguishable from the second minute regions. The first and second minute regions are provided alternately along the tire radial direction, and the radial positions of the first minute regions and the second minute regions are varied with respect to the tire circumferential direction.
    Type: Grant
    Filed: December 7, 2011
    Date of Patent: February 11, 2014
    Assignee: The Yokohama Rubber Co., Ltd.
    Inventor: Takahiro Yamakawa
  • Publication number: 20140036499
    Abstract: The present invention provides a white light source comprising a blue light emitting LED having a light emission peak of 421 to 490 nm and satisfying a relational equation of ?0.2?[(P(?)×V(?))/(P(?max1)×V(?max1))?(B(?)×V(?))/(B(?max2)×V(?max2))]?+0.2, assuming that: a light emission spectrum of the white light source is P(?); a light emission spectrum of black-body radiation having a same color temperature as that of the white light source is B(?); a spectrum of a spectral luminous efficiency is V(?); a wavelength at which P(?)×V(?) becomes largest is ?max1; and a wavelength at which B(?)×V(?) becomes largest is ?max2. According to the above white light source, there can be provided a white light source capable of reproducing the same light emission spectrum as that of natural light.
    Type: Application
    Filed: June 23, 2011
    Publication date: February 6, 2014
    Applicants: TOSHIBA MATERIALS CO., LTD., KABUSHIKI KAISHA TOSHIBA
    Inventors: Masahiko Yamakawa, Yasuhiro Shirakawa
  • Publication number: 20140036285
    Abstract: A problem of the present invention is to provide a control apparatus, a controlling method, a program, and a recording medium which can print by using at least one or more special colors in addition to four colors of Cyan, Magenta, Yellow, and Black. To solve the above problem, the control apparatus according to the present invention includes analyzing unit that provides command analysis for a CMYK plate and a clear toner plate, generating unit that generates image data of the CMYK plate based on a result of the command analysis by the analyzing unit, and embedding unit that embeds a clear toner attribute obtained by analyzing the clear toner plate in an attribute flag accompanying each of pixels of the image data of the CMYK plate, which is generated by the generating unit.
    Type: Application
    Filed: October 2, 2013
    Publication date: February 6, 2014
    Applicant: CANON KABUSHIKI KAISHA
    Inventor: Junichi Yamakawa
  • Patent number: 8641887
    Abstract: [Object] To provide a gas decomposition apparatus and a gas decomposition method in which no safety problems occur in spite of the application of a relatively high voltage between an anode and a cathode for the purpose of decomposing odorous gases of many types. [Solution] A catalytic electrode layer 6 that contains a catalyst and is porous; a counter electrode layer 7 that forms a pair with the catalytic electrode; and an electrolyte layer 15 that is sandwiched between the catalytic electrode and the counter electrode and has ion conductivity are included. The catalyst is held by the catalytic electrode in the form of being carried by a carrier containing a conductive material or the catalyst is directly carried by the catalytic electrode. A conductive material in the catalytic electrode, the conductive material being in contact with the catalyst, is not a noncovalent carbon material.
    Type: Grant
    Filed: April 2, 2009
    Date of Patent: February 4, 2014
    Assignee: Sumitomo Electric Industries, Ltd.
    Inventors: Masatoshi Majima, Shinji Inazawa, Koji Nitta, Masahiro Yamakawa, Takayasu Sugihara, Yasuhiro Takeda, Yoshihiro Akahane, Takahiro Imai
  • Patent number: 8642149
    Abstract: A hose for transporting refrigerant of the present technology includes an inner tube layer having a gas barrier layer and a rubber layer adjacent to an outer surface of the gas barrier layer. The gas barrier layer includes a polyamide resin composition obtained by blending from 0.5 to 20 parts by mass of a hydrotalcite per 100 parts by mass of a modified polyamide obtained by blending a polyamide and a carboxyl group-containing modified polyolefin. The rubber layer includes a rubber composition obtained by compounding from 1 to 15 parts by mass of an alkylphenol-formaldehyde resin per 100 parts by mass of a raw rubber. The raw rubber is at least one selected from the group consisting of a BIMS and a butyl rubber and/or a halogenated butyl rubber, which is a copolymer rubber.
    Type: Grant
    Filed: April 27, 2010
    Date of Patent: February 4, 2014
    Assignee: The Yokohama Rubber Co., Ltd.
    Inventors: Kazuto Yamakawa, Yuusuke Matsuya, Koji Sato
  • Patent number: 8645064
    Abstract: Apparatus and methods for recommending a navigation destination based upon recent updates are provided. The apparatus and methods include, in one or more aspects, receiving a request from a user communication device for a desired item, and associating a user location of the user communication device with a destination location of a provider of the desired item. Further, the one or more aspects include identifying a destination communication device at the destination location, and querying the destination communication device for a human-originating response to obtain a current accessibility status of the desired item. Additionally, the one or more aspects include reporting the destination location of the provider and the current accessibility status to the user communication device.
    Type: Grant
    Filed: September 11, 2011
    Date of Patent: February 4, 2014
    Assignee: QUALCOMM Incorporated
    Inventors: David L. Bednar, Babak Forutanpour, Devender A. Yamakawa, Daniel S. Baker
  • Patent number: 8638034
    Abstract: The multi-micro hollow cathode light source has a cathode plate, an insulation plate, an anode plate, and metal pieces. The insulation plate is sandwiched by the cathode plate and the anode plate. The cathode plate is made of copper. The centers of the cathode plate, insulation plate, and anode plate, are provided with holes, respectively. The holes form a penetrating though-hole. Linear slots are disposed in the cathode plate continuously extending from the hole in a cross shape. Each slot penetrates the cathode plate. Four metal pieces made of materials different from one another are inserted and buried in the four slots.
    Type: Grant
    Filed: February 8, 2011
    Date of Patent: January 28, 2014
    Assignees: National University Corporation Nagoya University, Meijo University, Nu Eco Engineering Co., Ltd., Katagiri Engineering Co., Ltd.
    Inventors: Masaru Hori, Masafumi Ito, Takayuki Ohta, Hiroyuki Kano, Koji Yamakawa
  • Publication number: 20140019062
    Abstract: A nucleic acid information processing device includes a storage unit that stores first base sequence information including information on a plurality of base sequences, and second base sequence information including information on a plurality of base sequences; a threshold value receiving unit adapted to receive information that identifies a similarity threshold; a hybridization unit adapted to identify a degree of similarity and a starting position and a finishing position of a similar portion for one to one combinations with the base sequences included in the first base sequence information as a target, and the base sequences included in the second base sequence information as a probe; and a similar base sequence counting unit adapted to count for each probe a number of the targets for which the identified degree of similarity is greater than or equal to the similarity threshold, and storing the count in the storage unit.
    Type: Application
    Filed: June 27, 2011
    Publication date: January 16, 2014
    Applicants: Bioinformatics Institute for Global Good Inc., Japan Software Management Co. Ltd
    Inventors: Hisanori Nasu, Atsumi Tsujimoto, Takehiro Yamakawa, Hiroaki Ono
  • Publication number: 20140015340
    Abstract: A power transmission system includes: a switching element that converts a DC voltage into an AC voltage of a predetermined frequency to output; a power-transmission antenna unit into which the output AC voltage is input; a current detection unit that detects current flowing through the power-transmission antenna unit; a peak hold unit that acquires a peak value of current detected by the current detection unit; a timer unit that measures a timer value of a difference in time between when the switching element is turned ON and when a zero current is detected by the current detection unit; a frequency determination unit that determines the frequency based on the peak value acquired by the peak hold unit and the timer value measured by the timer unit; and a control unit that drives, based on the frequency determined by the frequency determination unit, the switching element to transmit power.
    Type: Application
    Filed: March 27, 2012
    Publication date: January 16, 2014
    Applicant: EQUOS RESEARCH CO., LTD.
    Inventors: Yasuo Ito, Hiroyuki Yamakawa
  • Publication number: 20140018477
    Abstract: A hydraulic composition comprising a water-soluble hydroxyalkyl alkyl cellulose, cement, aggregate, reinforcing fibers, and water is provided. The hydroxyalkyl alkyl cellulose has a degree of alkyl substitution of 1.2-1.7, the sum of the degree of alkyl substitution and the molar substitution of hydroxyalkyl is 1.5-2.0, and a proportion of glucose ring not substituted with alkyl and hydroxyalkyl groups per glucose ring unit is up to 10 mol %. The composition cures within a short time and is extrusion moldable even at elevated temperature.
    Type: Application
    Filed: July 2, 2013
    Publication date: January 16, 2014
    Inventors: Hidekazu KONISHI, Rumiko ITOH, Tsutomu YAMAKAWA, Kazuhisa HAYAKAWA