Patents by Inventor Shinji Yamashita

Shinji Yamashita 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).

  • Patent number: 7709598
    Abstract: To obtain a polymerization initiator (acid generating agent) having excellent power for initiation of cationic polymerization without containing arsenic or antimony. Provided is a specific onium salt or transition metal complex salt of a fluorinated alkyl fluorophosphoric acid.
    Type: Grant
    Filed: May 27, 2005
    Date of Patent: May 4, 2010
    Assignee: San-Apro Limited
    Inventors: Hideki Kimura, Jiro Yamamoto, Shinji Yamashita, Mitsuo Kurumaya, Takaaki Sonoda
  • Patent number: 7709548
    Abstract: A monosulfonium salt in which very little unreacted raw material remains, which has a purity of at least 96%, and which has one sulfonio group in its molecule is manufactured without a refining step. After (a) an aryl compound, (b) a sulfoxide compound, (c) a dehydrating agent, and (d) a BF4, PF6, AsF6, or SbF6 salt of an alkali metal or an alkaline earth metal are introduced into a reaction system, (e) an inorganic acid is added, so that the aryl compound (a) and the sulfoxide compound (b) are subjected to dehydration condensation.
    Type: Grant
    Filed: December 17, 2007
    Date of Patent: May 4, 2010
    Assignee: San-Apro Limited
    Inventors: Masashi Date, Hideki Kimura, Shinji Yamashita, Jiro Yamamoto
  • Patent number: 7692412
    Abstract: A charging control apparatus is adapted to control an alternator which is operable to generate a voltage to charge a battery which is operable to supply the voltage to an electric component. An interface is connected to the alternator, the battery, and the electric component and operable to input and output a signal therebetween. A microcomputer is connected to the inter face and operable to execute a gradual change process in which a generating voltage of the alternator is gradually changed to a target generating voltage of the alternator and a sudden change process in which the generating voltage is suddenly changed to the target generating voltage. The microcomputer is operable to detect a using status of the electric component based on the signal. The microcomputer is operable to judge whether the gradual change process is required or the sudden change process is required based on the detected using status.
    Type: Grant
    Filed: February 15, 2007
    Date of Patent: April 6, 2010
    Assignee: Fujitsu Ten Limited
    Inventors: Kazuhi Yamaguchi, Kouji Fukuoka, Shinji Yamashita, Shinji Takemoto, Shinichiro Takatomi
  • Patent number: 7677215
    Abstract: A power management device comprises a start management control unit having a starter hold control function for actuating a starter motor and holding the actuation based on an operating signal from a button switch, a first terminating unit for terminating cranking hold when receiving a starter stop instruction signal sent from an engine control device when it is determined that an engine reached a complete explosion, a second terminating unit for terminating cranking hold when it is determined that the engine reached a complete explosion based on an engine revolution signal sent from the engine control device, and a forced terminating unit for forcefully terminating cranking hold when cranking hold cannot be terminated by those terminating units.
    Type: Grant
    Filed: April 16, 2007
    Date of Patent: March 16, 2010
    Assignee: Fujitsu Ten Limited
    Inventors: Kazuhi Yamaguchi, Shinichiro Takatomi, Takashi Matsui, Shinji Takemoto, Shinji Yamashita
  • Publication number: 20100033796
    Abstract: An optical module includes a mirror which reflects input light and which outputs output light; and a mirror control section which is opposite to the mirror and which controls, at the time of the input light being reflected from a reflecting surface of the mirror, the reflecting surface by distorting the reflecting surface according to voltage applied to the mirror so as to output the output light an optical coupling characteristic of which changes. By using this optical module, the optical coupling characteristic of the output light changes.
    Type: Application
    Filed: July 29, 2009
    Publication date: February 11, 2010
    Applicants: FUJITSU LIMITED, THE UNIVERSITY OF TOKYO
    Inventors: Shinji Yamashita, Tsuyoshi Yamamoto, Masaaki Kawai, Hiroyuki Fujita
  • Patent number: 7653273
    Abstract: The optical switch includes: a spectroscopic device which separates wavelength division multiplexed (WDM) light into its component wavelengths; and a plurality of movable reflectors, arranged in a spectral direction at different intervals, for reflecting light of an individual component wavelength separated by said spectroscopic device. With this optical switch, deterioration of the characteristic of the pass band is avoided, so that the pass band characteristic is increased.
    Type: Grant
    Filed: January 24, 2005
    Date of Patent: January 26, 2010
    Assignee: Fujitsu Limited
    Inventors: Shinji Yamashita, Tsuyoshi Yamamoto, Tamotsu Akashi, Kohei Shibata, Hirofumi Aota, Osamu Tsuboi
  • Publication number: 20100002292
    Abstract: A switching filter is provided in a light source device according to the present invention. The switching filter has a first dichroic filter which transmits illumination light in a first wavelength band from a lamp and a fluorescence observation filter which transmits at least illumination light in a second wavelength band and is rotatably provided such that the first dichroic filter and the fluorescence observation filter pass through an illumination light optical axis. An LED portion has a blue LED which emits illumination light in the first wavelength band toward the switching filter. A second dichroic filter capable of transmitting illumination light from the lamp and reflecting illumination light from the LED portion to a condenser lens is also arranged at the switching filter.
    Type: Application
    Filed: July 2, 2009
    Publication date: January 7, 2010
    Applicant: OLYMPUS MEDICAL SYSTEMS CORP.
    Inventors: Yusuke YABE, Koji OMORI, Shinji YAMASHITA, Yoshimine KOBAYASHI, Masato TODA
  • Patent number: 7636503
    Abstract: A wavelength selective switch of the present invention angularly disperses lights output from a plurality of input ports of an input and output optical system, to an X-direction, according to wavelength, by a diffraction grating to supply the dispersed lights to a condenser lens. The condenser lens is arranged so that a center axis thereof is shifted to the X-direction relative to an axis passing through the center of spreading angle to the X-direction of output beams from the diffraction grating, and accordingly, at a non-operating time, the light of each wavelength passed through the condenser lens is incident on each movable mirror being tilted by an offset angle corresponding to a shift amount of the condenser lens. As a result, it becomes possible to block the connection between an input side and an output side at the non-operating time without degrading the performance at an operating time.
    Type: Grant
    Filed: March 11, 2008
    Date of Patent: December 22, 2009
    Assignee: Fujitsu Limited
    Inventors: Tsuyoshi Yamamoto, Tamotsu Akashi, Kohei Shibata, Hirofumi Aota, Shinji Yamashita
  • Publication number: 20090250591
    Abstract: An optical wavefront control system by which the number of optical components or costs can be reduced. If an optical wavefront control system comprising an optical wavefront control section for controlling, in accordance with a wavefront control signal for controlling a phase of a wavefront of input light inputted and an aberration control signal for controlling an aberration of the input light inputted, the phase and the aberration and for outputting output light, a detection section for detecting optical information regarding a wavefront and an aberration of the output light inputted from the optical wavefront control section, and a control circuit section for outputting the wavefront control signal and the aberration control signal to the optical wavefront control section on the basis of the optical information detected by the detection section is used, the wavefront of the input light can be controlled and the aberration can be corrected.
    Type: Application
    Filed: March 25, 2009
    Publication date: October 8, 2009
    Applicants: FUJITSU LIMITED, The University of Tokyo
    Inventors: Shinji Yamashita, Tsuyoshi Yamamoto, Masaaki Kawai, Hiroyuki Fujita
  • Publication number: 20090240392
    Abstract: Provided is a control device including: a storage portion for storing binary data transmitted from outside and received successively; and a control portion for carrying out processing including: production processing of producing a frame where of the stored binary data, pieces of data expressing events occurring in a predetermined period are placed into a group among which pieces of data expressing events each having a small degree of variation are arranged so as to be close to each other; difference computing processing of arranging the frames produced at intervals of the predetermined time in a predetermined order and of computing a difference between two adjacent frames; compression processing of compressing a result of the computation by a run length method; and recording processing of recording, to a recording portion, a first frame in the difference computing processing, a number of difference computations, and the compressed data.
    Type: Application
    Filed: March 13, 2009
    Publication date: September 24, 2009
    Applicant: FUJITSU TEN LIMITED
    Inventors: Shinji YAMASHITA, Takehito IWANAGA, Shigeto UMEYAMA
  • Publication number: 20090210397
    Abstract: A data search device that is provided in a communication apparatus detects a memory area storing data to be transmitted from a memory unit having memory areas defined by IDs allotted to data. The data search device includes: a first flag that is provided for each of the memory areas of the memory unit, and indicate whether the data in the corresponding memory area is updated; a second flag that is provided for each group consisting of a predetermined number of the first flags, and indicates a data update state when at least one set of data in the first flags in the corresponding group indicates an updated state; and a search control unit that detects the memory area storing the data to be transmitted, by searching for the corresponding first flag after detecting the second flag.
    Type: Application
    Filed: February 19, 2009
    Publication date: August 20, 2009
    Applicants: FUJITSU TEN LIMITED, TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Susumu Nishihashi, Shinji Yamashita, Kenji Hontani, Yukio Fujisawa, Satoshi Yamanaka, Hiroaki Shimauchi
  • Publication number: 20090200126
    Abstract: A variable damping-force damper includes a cylinder tube filled with magnetic particles (MRF), a piston that is slidably disposed within the cylinder tube, a piston rod connected with the piston and is disposed so as to protrude out of one end of the cylinder tube and a rod guide that closes one end of the cylinder tube and slidably supports the piston rod. The cylinder tube has a Ni plating film whose Vickers hardness is 800 VHN or more on its inner peripheral surface and the piston slides relative to the Ni plating film. The rod guide has a structure having a predetermined base material portion and a fluorine resin contained Ni plating film that is treated by heat and is provided on the surface of the base material portion. The piston rod slides relative to the fluorine resin contained Ni plating film.
    Type: Application
    Filed: February 9, 2009
    Publication date: August 13, 2009
    Applicant: Honda Motor Co., Ltd.
    Inventors: Yohei Kondo, Hidetoshi Amano, Shinji Yamashita, Hajime Kajiwara, Hiroshi Ogasa, Yoshitomo Azekatsu
  • Patent number: 7558448
    Abstract: An optical switching system includes a connection information memory portion (21) that stores connection information between input ports and output ports, a control characteristic memory portion (23) that stores control characteristic data of micro mirrors with respect to each of a plurality of temperatures, a temperature sensor (25) that senses a temperature in the optical switching system, and a computing portion (22) that refers to the control characteristic data stored in the control characteristic memory portion so as to calculate a controlled variable for the angle control of the micro mirrors based on the connection information stored in the connection information memory portion and the temperature sensed by the temperature sensor.
    Type: Grant
    Filed: November 30, 2007
    Date of Patent: July 7, 2009
    Assignee: Fujitsu Limited
    Inventors: Yuji Ishii, Shinji Yamashita
  • Publication number: 20090163723
    Abstract: Disclosed is a low cost, efficient method for production of a salt composed of an arylsulfonium and a fluorinated alkylfluorophosphate which method does not required a large excess amount of acid. The method comprises reacting an aryl compound Ar—H and with a compound represented by the formula (I), wherein R1 and R2 denote a hydrocarbon group or a heterocycle group which may be substituted, or they are bonded with each other directly or via —O—, —S—, —SO—, —SO2—, —NH—, —NR?—, —CO—, —COO—, —CONH—, an alkylene group having 1 to 3 carbon atoms or a phenylene group to form a ring structure which may be substituted, wherein R? denotes a C1-5 alkyl group or a C6-10 aryl group; in the presence of an acid represented by the formula (2), wherein Rf denotes an alkyl group 80% or more of whose hydrogen atoms are substituted by fluorine atoms, “a” is an integer of 1 to 5; and a dehydrating agent to produce the salt of sulfonium represented by the formula (3).
    Type: Application
    Filed: November 24, 2006
    Publication date: June 25, 2009
    Inventors: Hideki Kimura, Jiro Yamamoto, Shinji Yamashita
  • Publication number: 20090080175
    Abstract: A light source device which causes a sufficiently bright subject image to be obtained is provided. The light source device includes a first light-emitting diode 10-1 which generates illumination light to be applied to a subject, a second light-emitting diode 10-2 which generates illumination light with wavelength different from the illumination light generated from the first light-emitting diode 10-1, and a light-emitting diode drive control section 3 which independently controls integrated output values (light emission intensities, light emission periods) of the first light-emitting diode 10-1 and second light-emitting diode 10-2 in synchronism with image pickup timing at which the subject is photographed.
    Type: Application
    Filed: March 30, 2006
    Publication date: March 26, 2009
    Inventors: Kyosuke Mizuno, Shinji Yamashita
  • Publication number: 20090075301
    Abstract: A diagnostic marker is composed of particles that have a diameter of from 1 nm to 100 ?m, the particles possessing on their surfaces a site that has a high specific bonding ability to a specific antigen residing on the mucosa of digestive cancers and a site that has a low bonding ability to the mucosa of digestive organs, and further incorporating an identification material.
    Type: Application
    Filed: February 20, 2007
    Publication date: March 19, 2009
    Applicant: ADEKA CORPORATION
    Inventors: Shinji Sakuma, Shinji Yamashita, Ken-ichiro Hiwatari, Yoshikazu Shoji
  • Publication number: 20090059592
    Abstract: A light source device includes a light source lamp, a rotary plate, a heat absorbing portion, and a filter mounting member. The light source lamp emits illumination light. The rotary plate includes multiple opening portions that are selectively disposed in the illumination light path of the light source lamp. A reflective filter that reflects light of a wavelength that acts a heat source in illumination light is provided in one of the multiple opening portions of the rotary plate. The heat absorbing portion absorbs heat included in reflected light reflected by the reflective filter in the opening portion. The filter mounting member disposes the reflective filter in the opening portion at a predetermined angle of inclination to the optical axis of the illumination light. By disposing the inclined reflective filter in the illumination light path, reflected light reflected by the reflective filter is reflected towards the heat absorbing portion.
    Type: Application
    Filed: August 8, 2008
    Publication date: March 5, 2009
    Applicant: OLYMPUS MEDICAL SYSTEMS CORP.
    Inventors: Seiki TORIYAMA, Mutsumi OSHIMA, Shinji YAMASHITA, Keiichi TSUCHIDA, Tomoya TAKAHASHI, Atsushi SHIMADA, Yusuke YABE, Kyosuke MIZUNO
  • Publication number: 20090060416
    Abstract: A wavelength selective switch of the present invention angularly disperses lights output from a plurality of input ports of an input and output optical system, to an X-direction, according to wavelength, by a diffraction grating to supply the dispersed lights to a condenser lens. The condenser lens is arranged so that a center axis thereof is shifted to the X-direction relative to an axis passing through the center of spreading angle to the X-direction of output beams from the diffraction grating, and accordingly, at a non-operating time, the light of each wavelength passed through the condenser lens is incident on each movable mirror being tilted by an offset angle corresponding to a shift amount of the condenser lens. As a result, it becomes possible to block the connection between an input side and an output side at the non-operating time without degrading the performance at an operating time.
    Type: Application
    Filed: March 11, 2008
    Publication date: March 5, 2009
    Applicant: Fujitsu Litmited
    Inventors: Tsuyoshi Yamamoto, Tamotsu Akashi, Kohei Shibata, Hirofumi Aota, Shinji Yamashita
  • Publication number: 20090052185
    Abstract: A light source device includes a light-condensing device that condenses an illumination light that is emitted from a light source lamp. The light-condensing device includes at least one lens, a lens holder in which a lens is fixedly provided, and a lens holding member. The lens holding member is a member for fixing a lens to the lens holder. The lens holding member causes at least one circumferential portion of the lens to protrude to the lens holder side, and causes the optical axis of the lens to match the optical axis of the illumination light.
    Type: Application
    Filed: August 8, 2008
    Publication date: February 26, 2009
    Applicant: OLYMPUS MEDICAL SYSTEMS CORP.
    Inventors: Seiki TORIYAMA, Mutsumi OSHIMA, Shinji YAMASHITA, Keiichi TSUCHIDA, Tomoya TAKAHASHI, Atsushi SHIMADA, Yusuke YABE, Kyosuke MIZUNO
  • Patent number: 7491728
    Abstract: The pyrimidinone compounds are disclosed. Methods of preparing the pyrimidinone compounds are also disclosed.
    Type: Grant
    Filed: April 7, 2004
    Date of Patent: February 17, 2009
    Assignee: SmithKline Beecham Corp.
    Inventors: Irina V. Shcherbakova, Manuel F. Balanddrin, Guangfei Huang, Otto Geoffroy, John Fox, Robert Marquis, Dennis Shinji Yamashita, Juan Luengo, Wenyong Wang