Patents by Inventor Satoshi Fujita

Satoshi Fujita 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: 20100058885
    Abstract: A motion guide device is provided which comprises a chain of rollers in which retainers are interposed, in which the chain of rollers is given a degree of freedom of rotation. The motion guide device comprises a track member (5) on which a roller rolling part (5a) is formed which allows rollers (7) to roll on along the roller rolling part; a moving member (6) on which a loaded roller rolling part (6a) facing the roller rolling part (5a) is formed; a plurality of rollers (7) arranged on a roller circulation path containing a loaded roller rolling path (9) formed between the roller rolling part (5a) of the track member (5) and the roller rolling part (6a) of the moving member (6); and a plurality of retainers (8) respectively interposed between rollers of the plurality of rollers (7).
    Type: Application
    Filed: February 3, 2006
    Publication date: March 11, 2010
    Applicant: THK CO., LTD.
    Inventors: Masakazu Uesugi, Kentaro Nishimura, Satoshi Fujita, Akimasa Yoshida, Satoru Nagai, Hiroyuki Arai
  • Publication number: 20100038596
    Abstract: This invention provides a process for producing a dispersion liquid of an intrinsic electroconductive polymer in an organic solvent, comprising a deionization step of deionizing an aqueous colloid dispersion liquid of an intrinsic electroconductive polymer by a liquid feeding method to remove cations adsorbed on the intrinsic electroconductive polymer, a solvent displacement step of subjecting water in the aqueous colloid dispersion liquid after the deionization step to solvent displacement with an organic solvent (excluding N-methylpyrrolidone and dimethyl sulfoxide), and an additive treatment step of, after the solvent displacement step, adding N-methylpyrrolidone or dimethyl sulfoxide.
    Type: Application
    Filed: December 8, 2006
    Publication date: February 18, 2010
    Applicant: NISSAN CHEMICAL INDUSTRIES , LTD.
    Inventors: Tadayuki Isaji, Satoshi Fujita
  • Patent number: 7643261
    Abstract: There is provided a semiconductor device capable of supplying an analog input signal higher than or equal to an operating power supply voltage. An electrostatic discharge protection circuit corresponding to the analog input signal is provided for an external terminal that is supplied with an analog input signal generated with a first power supply voltage. A voltage divider resistor divides the analog input signal passing through the electrostatic discharge protection circuit into a voltage corresponding to a second power supply voltage lower that the first power supply voltage. An input circuit operating on the second power supply voltage receives the analog input signal divided by the voltage divider resistor to form an internal analog signal. There are provided first and second unidirectional elements. The first unidirectional element passes current from the input circuit's input terminal to the second power supply voltage.
    Type: Grant
    Filed: December 27, 2006
    Date of Patent: January 5, 2010
    Assignee: Renesas Technology Corp.
    Inventors: Hiroshi Ide, Satoshi Fujita, Takehiko Umeyama
  • Publication number: 20090301246
    Abstract: The present invention provides a screw device which takes a heavy load in one direction along the axis of the screw shaft and only a light load in the opposite direction, the screw device capable of providing ease of control of preloading. The screw device of the present invention has a screw shaft 1 with an outer surface having a ball rolling groove 1a for rolling balls 7 and a roller rolling groove 1b for rolling rollers 6 both spirally formed thereon; a ball nut 4 with an inner surface having a ball rolling groove 4a spirally formed thereon facing the ball rolling groove 1a of the screw shaft 1; a roller nut 5 with an inner surface having a roller rolling groove 5a spirally formed thereon facing the roller rolling groove 1b of the screw shaft 1; a plurality of balls 7 arranged between the screw shaft 1 and the ball nut 4; and a plurality of rollers 6 arranged between the screw shaft 1 and the roller nut 5. The ball nut 4 and the roller nut 5 are connected along an axis of the screw shaft 1.
    Type: Application
    Filed: June 16, 2006
    Publication date: December 10, 2009
    Applicant: THK CO., LTD.
    Inventors: Akimasa Yoshida, Masakazu Uesugi, Kentaro Nishimura, Satoshi Fujita, Satoru Nagai, Hiroyuki Arai
  • Publication number: 20090249912
    Abstract: The present invention provides a roller screw capable of circulating rollers smoothly. A roller screw of the present invention has a screw shaft 1 having a roller rolling surface 1a spirally formed with a lead on an outer surface thereof; a nut 2 having a roller rolling surface 2a spirally formed on an inner surface thereof to face the roller rolling surface 1a of the screw shaft 1; and a plurality of rollers 4 arranged in a rolling path 3 between the roller rolling surface 1a of the screw shaft 1 and the roller rolling surface 2a of the nut 2 and moving around the screw shaft while rotating on rotation axes of the rollers. In this roller screw, each of the rotation axes 4a of the rollers 4 substantially crosses a center line 1b of the screw shaft 1.
    Type: Application
    Filed: March 2, 2006
    Publication date: October 8, 2009
    Applicant: THK CO., LTD.
    Inventors: Hidekazu Michioka, Makoto Iizumi, Satoshi Fujita, Akimasa Yoshida
  • Publication number: 20090078307
    Abstract: A three-pole two-layer photo-rechargeable battery has a laminated two-layered structure that includes a solar battery cell, a storage cell, and a common electrode therebetween. The solar battery cell has a structure wherein a photo-electrode, which has a photo-sensitized dye and a semiconductor layer on a conductive substrate with optical transparency, counters via a first electrolytic solution a common electrode that has a catalyst layer on a conductive substrate. The storage cell has a structure wherein the common electrode, which has a first conductive polymer layer on a conductive substrate on a side opposite the catalyst layer, counters via a second electrolytic solution a storage cell counter electrode that has a second conductive polymer layer on a conductive substrate.
    Type: Application
    Filed: March 25, 2008
    Publication date: March 26, 2009
    Applicants: THE UNIVERSITY OF TOKYO, NISSAN CHEMICAL INDUSTRIES, LTD.
    Inventors: Hiroshi Segawa, Yosuke Saito, Satoshi Uchida, Takaya Kubo, Satoshi Fujita, Tadayuki Isaji
  • Publication number: 20090047501
    Abstract: An easy-open end comprising a resin-coated metal plate obtained by coating a metal substrate with a anti-blocking agent-containing biaxially drawn film via a primer, wherein an important feature resides in that the anti-blocking agent in the biaxially drawn film is of a spherical shape having an average particle size of 0.5 to 2.5 ?m and an average particle size ratio (long diameter/short diameter) in a range of 1.0 to 1.2, and is contained at a ratio of 0.05 to 0.5% by weight in the biaxially drawn film. Even without forming a top-coat layer, therefore, the film is not scratched or the forming-tool is not damaged by the anti-blocking agent that adheres and deposits on the forming tool. Besides, the resin coating favorably adheres to the metal plate offering excellent advantage in production and in economy.
    Type: Application
    Filed: September 28, 2006
    Publication date: February 19, 2009
    Applicant: Toyo Seikan Kaisha, Ltd.
    Inventors: Etsuko Yaoi, Satoshi Fujita, Akio Kuroda, Kouji Katou, Toshio Sue
  • Publication number: 20090047524
    Abstract: An easy open end comprising a resin-coated metal plate obtained by coating a metal substrate with a polyester film via a primer, wherein the primer comprises an epoxy resin or a polyester resin and a resole-type phenol resin, and the resole-type phenol resin has 0.2 to 2.0 methylol groups per a benzene ring. The end can be lightly opened without causing defect at the time of opening the end by pushing in the end of a tab and cutting the score and, particularly, can be excellently opened at high temperatures without arousing the problem even in a state of being heated at high temperatures featuring excellent corrosion resistance, resistance against the content and retort resistance.
    Type: Application
    Filed: March 2, 2007
    Publication date: February 19, 2009
    Applicant: TOYO SEIKAN KAISHA, LTD.
    Inventors: Etsuko Yaoi, Yasufumi Tadaki, Toshio Sue, Kazuhiro Sato, Satoshi Fujita
  • Publication number: 20080218761
    Abstract: A sensor chip has a metal layer formed on a surface of a substrate, where a plurality of microscopic concave part is formed in a measurement region of the surface of the metal layer. When light of linear polarization is irradiated onto the measurement region, local resonance electric field generates at opposing metal layer surfaces in the concave part. The reflected light thereof is received to measure reflectance. The light of linear polarization is irradiated so that the polarizing surface becomes orthogonal to the longitudinal direction of the concave part.
    Type: Application
    Filed: March 5, 2008
    Publication date: September 11, 2008
    Applicant: OMRON CORPORATION
    Inventors: Takeo Nishikawa, Tomohiko Matsushita, Hideyuki Yamashita, Ryosuke Hasui, Satoshi Fujita, Yutaro Okuno, Shigeru Aoyama
  • Patent number: 7273254
    Abstract: The invention is intended to improve operability of a seat unit in a process of turning it from an approximately horizontal storage position to a seating position. An upper end of a seatback (SB) in its seating position and a rear end of a seat cushion (SC) are joined together by a string (23), and two helical springs (biasing members) are provided at a forward portion of the seat cushion (SC). The first helical spring (39) exerts an upward biasing force which is smaller than the weight of the seat cushion (SC) against the seat cushion (SC), while the second helical spring (38) exerts an upward biasing force which is larger than the weight of the seat cushion (SC) against the seat cushion (SC). With this arrangement, a rear portion of the seat cushion (SC) is lifted when the seat is turned from the seating position to the storage position, and a small force is needed for lifting the seat cushion (SC) when it is turned in a reverse direction.
    Type: Grant
    Filed: May 7, 2003
    Date of Patent: September 25, 2007
    Assignee: Mazda Motor Corporation
    Inventors: Satoshi Fujita, Kousei Nakano
  • Publication number: 20070177328
    Abstract: There is provided a semiconductor device capable of supplying an analog input signal higher than or equal to an operating power supply voltage. An electrostatic discharge protection circuit corresponding to the analog input signal is provided for an external terminal that is supplied with an analog input signal generated with a first power supply voltage. A voltage divider resistor divides the analog input signal passing through the electrostatic discharge protection circuit into a voltage corresponding to a second power supply voltage lower that the first power supply voltage. An input circuit operating on the second power supply voltage receives the analog input signal divided by the voltage divider resistor to form an internal analog signal. There are provided first and second unidirectional elements. The first unidirectional element passes current from the input circuit's input terminal to the second power supply voltage.
    Type: Application
    Filed: December 27, 2006
    Publication date: August 2, 2007
    Inventors: Hiroshi IDE, Satoshi Fujita, Takehiko Umeyama
  • Publication number: 20070111301
    Abstract: In a biological information inspection system capable of accumulating highly reproducible biological information in a plurality of inspection means and making a multifactorial analysis of related information, simplification and downsizing of the system is achieved. The biological information inspection system 10 of the present invention comprises a sensor chip 20 holding a sample such as genes, a sensor chip holding portion 11 in which the sensor chip 20 is placed, and a data reading portion 13 for acquiring image data of a detection portion 21 and a marker portion 21 of the sensor chip 20. The system further comprises a data calculation unit 16 for executing a plurality of programs for acquiring biological information data from the image data of the detection portion 21. Which of the inspection means the sensor chip 20 corresponds to is identified from the read image data of the marker portion 23.
    Type: Application
    Filed: November 25, 2004
    Publication date: May 17, 2007
    Applicant: AISIN SEIKI KABUSHIKI KAISHA
    Inventors: Satoshi Fujita, Masayoshi Momiyama
  • Patent number: 7144376
    Abstract: A magnetic field distribution measurement device (1) provides a non-contact magnetic measurement on a subject's chest at a plurality of coordinates and forms therefrom time-series magnetic field distribution data. A first arithmetic device (2) in response generates image data representing a three-dimensional, intramyocardial current density distribution. A second arithmetic device (3) receives a plurality of tomographic image data separately obtained by a tomographic diagnosis apparatus and processes the data to generate three-dimensional, anatomical image data. A display device (4) receives these data and displays on an anatomical image an image representing an intramyocardial current density. Thus in a ventricle a lesioned or viable part of myocardium can be readily identified in location, size, geometry and level. Furthermore, the anatomical image may be replaced with an image representing a normal stimulation propagation circuit and serving as a template.
    Type: Grant
    Filed: July 17, 2001
    Date of Patent: December 5, 2006
    Assignees: Japan Science and Technology Corporation, Takenaka Corporation
    Inventors: Kenji Nakai, Masahito Yoshizawa, Kohei Kawazoe, Keita Yamazaki, Satoshi Fujita, Itsuro Tamura
  • Patent number: 7136340
    Abstract: A disk type record playback device having a wobble signal extracting bandpass filter for controlling a filter's center frequency according to a frequency follow-up control loop including a dummy filter identical in configuration to a filter to be controlled, and a phase comparator is capable of controlling the center frequency of the bandpass filter with satisfactory accuracy. A frequency variable lowpass filter is provided in a preceding stage of the phase comparator constituting a frequency follow-up circuit and supplies a signal obtained by eliminating harmonic components from a frequency follow-up clock signal to the phase comparator. A cutoff frequency of the lowpass filter is changed in cooperation with a center frequency of the bandpass filter, based on a signal outputted from the frequency follow-up control loop.
    Type: Grant
    Filed: November 25, 2003
    Date of Patent: November 14, 2006
    Assignees: Renesas Technology Corp., Akita Electronics Systems Co., Ltd.
    Inventors: Hiroshi Ide, Satoshi Fujita
  • Patent number: 7123952
    Abstract: A magnetic field distribution measurement device (1) provides a non-contact magnetic field measurement on a subject's chest at a plurality of coordinates and forms therefrom time-series magnetic field distribution data. A first arithmetic device (2) in response generates image data representing a three-dimensional, intramyocardial current density distribution. A second arithmetic device (3) receives a plurality of tomographic image data separately obtained by a tomographic diagnosis apparatus and processes the data to generate three-dimensional, anatomical image data. A display device (4) receives these data and displays on an anatomical image an image representing an intramyocardial current density. This can facilitate identifying an anatomical, positional relationship of an abnormal, electrical reentry circuit caused in heart muscle. Furthermore, the anatomical image may be replaced with an image representing a normal stimulation propagation circuit and serving as a template.
    Type: Grant
    Filed: July 17, 2001
    Date of Patent: October 17, 2006
    Assignees: Japan Science and Technology Corporation, Takenaka Corporation
    Inventors: Kenji Nakai, Masahito Yoshizawa, Kohei Kawazoe, Keita Yamazaki, Satoshi Fujita, Itsuro Tamura
  • Publication number: 20060219549
    Abstract: Ag alloy sputtering target of the invention comprises (1) an Ag alloy containing 0.1 to 20 wt % of Zn, 0.1 to 3 wt % of Al, and a balance of Ag, (2) an Ag alloy containing 0.1 to 20 wt % of Zn, 0.1 to 3 wt % of Al, totally 0.005 to 0.05 wt % of one or more elements selected from Ca, Be, and Si, and a balance of Ag, or (3) an Ag alloy containing 0.5 to 5 wt % of Cu, 0.
    Type: Application
    Filed: May 16, 2003
    Publication date: October 5, 2006
    Applicant: Mitsubishi Materials Corporation
    Inventors: Akifumi Mishima, Satoshi Fujita, Masahiro Syoji
  • Patent number: 7034780
    Abstract: A plasma display device is provided which is capable of preventing image disturbance and imposition of excessive loads even when resolution is switched. A vertical frequency counter counts vertical sync signals using system clocks and a vertical frequency comparator checks whether or not the value obtained from the counting matches up with a vertical frequency decoded value. A line number counter counts vertical sync signals using horizontal sync signals and a line number comparator checks whether or not the value obtained from the counting matches up with a line number decoded value. A dot number counter counts horizontal sync signals using analog digital clocks and a dot number comparator checks whether or not the value obtained from the counting matches up with a dot number decoded value. These values are ORed by an OR circuit and the result is output in a form of a mode monitoring detection signal.
    Type: Grant
    Filed: December 27, 2002
    Date of Patent: April 25, 2006
    Assignee: Pioneer Corporation
    Inventors: Satoshi Fujita, Akihiro Kasai
  • Patent number: 7000493
    Abstract: A screw device having a lubricant applying structure comprises a screw shaft provided with a spiral ball rolling groove, a nut provided with a loaded ball rolling groove having a spiral shape corresponding to the spiral ball rolling groove formed to the screw shaft, a number of balls disposed in a loaded rolling passage formed by the ball rolling groove and the loaded ball groove, a return member provided for the nut and arranged so as to connect one and another end portions of the loaded rolling passage so that the balls rolling the loaded rolling passage circulate, and a lubricant applying portion mounted to the return member so as to apply a lubricant. The lubricant applying portion is arranged inside the return member provided for the nut.
    Type: Grant
    Filed: February 5, 2003
    Date of Patent: February 21, 2006
    Assignee: THK Co., Ltd.
    Inventors: Satoshi Fujita, Yoshiaki Saito
  • Patent number: 6941165
    Abstract: A magnetic field distribution measurement device (1) provides a non-contact magnetic measurement on a subject's chest at a plurality of coordinates and forms therefrom time-series magnetic field distribution data. A first arithmetic device (2) in response generates image data representing an intramyocardial excitation conduction rate. A second arithmetic device (3) receives a plurality of tomographic image data separately obtained by a tomographic diagnosis apparatus and processes the data to generate three-dimensional, anatomical image data. A display device (4) receives these data and displays on an anatomical image an image representing an intramyocardial excitation current. This can facilitate identifying an anatomical, positional relationship of a ventricular late potential caused in heart muscle. Furthermore, the anatomical image may be replaced with an image representing a normal stimulation conduction path and serving as a template.
    Type: Grant
    Filed: July 17, 2001
    Date of Patent: September 6, 2005
    Assignees: Japan Science and Technology Corporation, Takenaka Corporation
    Inventors: Kenji Nakai, Masahito Yoshizawa, Kohei Kawazoe, Keita Yamazaki, Satoshi Fujita, Itsuro Tamura
  • Publication number: 20050191626
    Abstract: A stable linkage between a genotype and a phenotype in a cell-free system was successfully achieved by using interaction between a RNA-binding protein and RNA, between a DNA-binding protein and DNA, or by using a protein that inactivates a ribosome. Furthermore, it was found that functional proteins could be selected by using these stable linkages.
    Type: Application
    Filed: May 10, 2002
    Publication date: September 1, 2005
    Inventors: Kazunari Taira, Satoshi Fujita, Shinya Yoshizaki, Masaki Warashina