Patents by Inventor Kenji Kato

Kenji Kato 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: 20090038834
    Abstract: An alkali development-type solder resist includes (A) a carboxyl group-containing photosensitive resin obtained by reacting (a) a compound having two or more cyclic ether or thioether groups in the molecule with (b) an unsaturated monocarboxylic acid, reacting the product with (c) a polybasic acid anhydride, reacting the resulting resin with (d) a compound having a cyclic ether group and an ethylenic unsaturated group in the molecule, and reacting the product additionally with (c) a polybasic acid anhydride, (B) an oxime ester-based photopolymerization initiator containing a specific oxime ester group, (C) a compound having two or more ethylenic unsaturated groups in the molecule, and (D) a thermosetting component, wherein the dry film obtained by applying the composition has an absorbance of 0.3 to 1.2 per 25 ?m of the film thickness at a wavelength of 350 to 375 nm.
    Type: Application
    Filed: October 13, 2008
    Publication date: February 12, 2009
    Inventors: Nobuhito ITOH, Yoko Shibasaki, Kenji Kato, Masao Arima
  • Publication number: 20090029181
    Abstract: A photocurable and thermosetting resin composition developable with a dilute alkaline solution containing: (A) an ethylenic unsaturated group-containing and carboxylic acid-containing resin, (B) a coumarin skeleton-containing sensitizer having a maximum absorption wavelength of 360 to 410 nm, as represented by the following Formula (I): (C) a photopolymerization initiator, (D) a compound having two or more ethylenic unsaturated groups in the molecule, (E) a filler, and (F) a thermosetting component.
    Type: Application
    Filed: September 29, 2008
    Publication date: January 29, 2009
    Inventors: Yoko Shibasaki, Kenji Kato, Nobuhito Itoh, Masao Arima
  • Patent number: 7471190
    Abstract: An anti-theft vehicle alarm system includes an acceleration sensor acting as a tilt sensor, a microcomputer, a first power source for supplying a first voltage to the microcomputer, and a second power source for supplying a second voltage to the acceleration sensor. The microcomputer calculates a tilt angle of a vehicle from output of the acceleration sensor and activates an alarm in accordance with the tilt angle. If the second voltage is outside a predetermined voltage range, for example, due to a reduction in battery voltage, the microcomputer temporarily stops to activate the alarm to prevent a false alarm. The microcomputer monitors the second voltage not the battery voltage. Thus, even when the second voltage is outside the threshold range, for example, due to a breakdown in the second power source, the false alarm can be prevented.
    Type: Grant
    Filed: October 10, 2006
    Date of Patent: December 30, 2008
    Assignee: DENSO CORPORATION
    Inventor: Kenji Kato
  • Publication number: 20080308301
    Abstract: The present invention provides a photocurable and thermosetting resin composition having excellent surface curability and deep curability, allowing pattern formation with a laser beam having a wavelength of 350 to 410 nm, and being useful as a solder resist for laser direct imaging, the composition including a carboxylic resin (A), an oxime ester-based photopolymerization initiator (B) such as 2-(acetyloxyiminomethyl)thioxanthene-9-one, and another photopolymerization initiator than (B) such as 2,4,6-trimethylbenzoyl-diphenyl-phosphine oxide, and a sulfur compound (E) such as 2-mercaptobenzothiazole.
    Type: Application
    Filed: August 21, 2008
    Publication date: December 18, 2008
    Inventors: Nobuhito Itoh, Yoko Shibasaki, Kenji Kato, Masao Arima
  • Patent number: 7408298
    Abstract: On a back surface of a back substrate on which electron emission sources are formed, a getter room is formed by the back substrate and a cup-shaped room member. In the inside of the getter room, a getter assembly which includes a getter housing which holds a getter and a getter support which supports the getter housing is arranged. End portions of the getter support are fixed to and arranged between the back substrate and the room member by a sealing material. The present invention provides an image display device which prevents the occurrence of cracks in the getter room thus suppressing the degradation of a display characteristic of the image display device.
    Type: Grant
    Filed: December 28, 2005
    Date of Patent: August 5, 2008
    Assignee: Hitachi Displays, Ltd.
    Inventors: Kenji Kato, Yuuichi Kijima, Yoshiyuki Kaneko, Shigemi Hirasawa
  • Publication number: 20080150415
    Abstract: To provide an image display device including a lower electrode, an upper electrode, and an electron acceleration layer composed of an insulator or a semiconductor provided therebetween, and further including a thin film electron source array that emits electrons from the upper electrode, and a phosphor surface, wherein degradation of an electron emission characteristic caused by an increase of a work function due to an adhesive material to the above-described upper electrode is suppressed. An amount of S content adhering to the upper electrode is set equal to or less than 20 mol % of a total amount of elements used as the upper electrode in terms of elements by using an element belonging to Group VIII or Group Ib or a laminated film or alloy film thereof as a component of the upper electrode of the thin film electron source.
    Type: Application
    Filed: December 19, 2007
    Publication date: June 26, 2008
    Inventors: Masato Kaneeda, Yoshiyuki Kaneko, Tsutomu Kuniyasu, Yuuichi Kijima, Kenji Kato, Toshiaki Kusunoki
  • Publication number: 20080118864
    Abstract: An object of the present invention is to provide a black paste composition suitable for use in laser direct imaging devices employing a light source emitting a laser having a maximum wavelength of 350 to 420 nm, useful in forming a high-definition black matrix pattern efficiently, and superior in storage stability, a black matrix pattern formed by using the composition, a plasma display having the pattern, and a method of forming the black matrix pattern by using the composition. An alkali development-type black paste composition of the present invention comprises (A) a carboxyl group-containing resin, (B) a glass frit, (C) a black pigment, (D) a compound having at least one radically polymerizable unsaturated group in its molecule, and (E-1) an oxime-based photopolymerization initiator represented by the following general formula (I).
    Type: Application
    Filed: January 11, 2008
    Publication date: May 22, 2008
    Inventors: Masaki SASAKI, Kenji KATO, Masao ARIMA
  • Publication number: 20080118865
    Abstract: An object of the present invention is to provide a silver paste composition suitable for use in laser direct imaging devices employing a light source emitting a laser having a maximum wavelength of 350 to 420 nm, useful in forming a high-definition conductive pattern efficiently, and superior in storage stability, a conductive pattern formed by using the composition, a plasma display having the pattern, and a method of forming the conductive pattern by using the composition. An alkali development-type silver paste composition of the present invention comprises (A) a carboxyl group-containing resin, (B) a glass frit, (C) a silver powder, (D) a compound having at least one radically polymerizable unsaturated group in its molecule, and (E-1) an oxime-based photopolymerization initiator represented by the following general formula (I).
    Type: Application
    Filed: January 11, 2008
    Publication date: May 22, 2008
    Inventors: Masaki SASAKI, Kenji Kato, Masao Arima
  • Publication number: 20080113297
    Abstract: There are provided a photosensitive composition used in one-shot exposure of exposing it via a photomask to light from a UV lamp or in direct writing with light from a UV lamp or laser light to form a patterned latent image to be developed with an alkaline aqueous solution, wherein a difference between maximum absorbance and minimum absorbance, in a wavelength range of 355 to 405 nm, of a dry coating thereof before light exposure is within 0.3 per 25 ?m film thickness of the dry coating, and a dry film obtained by applying the photosensitive composition onto a carrier film and then drying it.
    Type: Application
    Filed: November 14, 2007
    Publication date: May 15, 2008
    Inventors: Yoko SHIBASAKI, Kenji Kato, Masao Arima
  • Patent number: 7366060
    Abstract: A near-field optical head has a main surface confronting a recording medium during use of the near-field optical head. A sharpened tip is disposed on the main surface and has an optical aperture at a front end thereof. An opaque film covers the sharpened tip and has a plastically deformed portion in the vicinity of the optical aperture. The front end of the sharpened tip projects from the plastically deformed portion of the opaque film. At least one stopper is disposed in the vicinity of the sharpened tip and has a height substantially equal to a height of the sharpened tip. At least one air-bearing surface is disposed on the main surface.
    Type: Grant
    Filed: February 23, 2006
    Date of Patent: April 29, 2008
    Assignee: Seiko Instruments Inc.
    Inventors: Takashi Niwa, Kenji Kato, Yasuyuki Mitsuoka, Manabu Oumi, Nobuyuki Kasama, Susumu Ichihara, Hidetaka Maeda, Yoko Shinohara
  • Publication number: 20080096133
    Abstract: A photocurable and thermosetting resin composition comprising (A) a carboxyl-group containing resin, (B) an oxime ester-based photopolymerization initiator containing an oxime ester group, (C) an aminoacetophenone-based photopolymerization initiator and/or a phosphine oxide-based photopolymerization initiator, (D) a compound having at least two ethylenically unsaturated groups in its molecule, (E) a filler, and (F) a thermosetting component is capable of being developed with a dilute alkaline solution and cured with a laser emission source having a maximum wavelength of 350 nm to 420 nm.
    Type: Application
    Filed: November 30, 2007
    Publication date: April 24, 2008
    Inventors: Kenji KATO, Yoko Shibasaki, Masao Arima, Shouji Minegishi
  • Publication number: 20080067989
    Abstract: A DC-DC converter reducing reversed current in a low load state and increasing output voltage response speed. An error amplification circuit generates an error signal from the output voltage. A pulse signal generation circuit generates a first pulse signal in accordance with the error signal. A comparison circuit generates a comparison result signal from the error signal. A drive signal generation circuit generates a constant level signal and a second pulse signal. An output circuit receives the first pulse signal and either the constant level signal or the second pulse signal to generate first and second drive signals for driving first and second transistors. The output circuit generates the second drive signal in accordance with the first pulse signal when receiving the constant level signal and generates the second drive signal with the first and second pulse signals when receiving the second pulse signal.
    Type: Application
    Filed: September 14, 2007
    Publication date: March 20, 2008
    Inventors: Toshihiko Kasai, Masatoshi Kokubun, Kenji Kato
  • Publication number: 20080070481
    Abstract: A probe cleaner for removing foreign objects from the tip part of a probe is formed with a cleaner sheet having a surface part with microfibers and abrading particles affixed to the surface of the microfibers at this surface part. The average fiber diameter of the microfibers is in the range of 0.1 ?m or more and 20 ?m or less. The average particle diameter of the abrading particles is in the range of 0.05 ?m or more and 3.0 ?m or less. For cleaning the tip part of a probe, the probe cleaner is set to the surface of a table, the tip part of the probe is caused to penetrate inside the surface part, and the probe is caused to undergo a reciprocal motion in the direction of the thickness of the surface part.
    Type: Application
    Filed: August 24, 2007
    Publication date: March 20, 2008
    Inventors: Jun Tamura, Kenji Kato
  • Patent number: 7337866
    Abstract: A work vehicle includes an engine, a PTO shaft driven by power from the engine, an operator's seat, an operator's presence sensor for detecting presence/absence of an operator at the operator's seat, and an automatic engine stop unit operable to automatically stop the engine in response to detection of the operator's absence at the operator's seat. The work vehicle includes a utility member for the vehicle selectively movable between a use position and a non-use position, a non-use state detecting sensor for detecting movement of the utility member to the non-use position, and an override unit operable to override the automatic engine stop function of the automatic engine stop unit, the override unit providing an override signal to the automatic engine stop unit in response to detection by the non-use state detecting sensor of the movement of the utility member to the non-use position.
    Type: Grant
    Filed: January 4, 2006
    Date of Patent: March 4, 2008
    Assignee: Kubota Corporation
    Inventors: Keishiro Nishi, Masao Takagi, Satoshi Machida, Kenji Kato, Masashi Osuga
  • Publication number: 20080048552
    Abstract: In an image display device which forms an image by allowing electrons from electron sources which are arranged in a matrix array to impinge on phosphors in the inside of a vacuum envelope, the degree of vacuum during an operation of the image display device is improved. A vacuum envelope is formed of a face substrate, a back substrate and a support body which is arranged between and along peripheries of the face substrate and the back substrate using a sealing material. By using frit glass which contains vanadium oxide as a main component for a material of the sealing material, due to a getter action of frit glass which contains vanadium oxide as the main component, after vacuum evacuation, a lifetime of the display device can be prolonged. Further, by using frit glass which contains vanadium oxide as the main component for a material of an adhesive material which bonds the spacers and the face substrate or bonds the spacers and the back glass, the getter action can be further enhanced.
    Type: Application
    Filed: August 15, 2007
    Publication date: February 28, 2008
    Inventors: Hiroshi Ito, Nobuhiko Hosotani, Shigemi Hirasawa, Yuuichi Kijima, Kenji Kato, Takashi Naito, Yuuichi Sawai
  • Patent number: 7332856
    Abstract: An image display device has a front substrate having an anode and phosphors, a rear substrate having electron sources and opposing the front substrate with a specified spacing therebetween, a support member which is sandwiched between the front and rear substrates, surrounds a display region, and maintains the specified spacing, and plural spacing-maintaining members which are sandwiched between the front and rear substrates in the display region, and are fixed at at least one of end faces of each of the spacing-maintaining members to a corresponding one of the front and rear substrates. Both end faces of the support member is hermetically sealed to the rear and front substrates, respectively. A height of the spacing-maintaining members is greater than that of the support member.
    Type: Grant
    Filed: October 21, 2005
    Date of Patent: February 19, 2008
    Assignee: Hitachi Displays, Ltd.
    Inventors: Yuuichi Kijima, Shigemi Hirasawa, Kenji Kato, Akira Hatori
  • Publication number: 20080035471
    Abstract: A silicon object formation target substrate is arranged in a first chamber, a silicon sputter target is arranged in a second chamber communicated with the first chamber, plasma for chemical sputtering is formed from a hydrogen gas in the second chamber, chemical sputtering is effected on the silicon sputter target with the plasma thus formed, producing particles contributing to formation of silicon object, whereby a silicon object is formed, on the substrate, from the particles moved from the second chamber to the first chamber.
    Type: Application
    Filed: September 21, 2006
    Publication date: February 14, 2008
    Inventors: Takashi Mikami, Atsushi Tomyo, Kenji Kato, Eiji Takahashi, Tsukasa Hayashi
  • Publication number: 20070287060
    Abstract: A positive electrode material that contains sulfur of high capacitance density as an active material without containing any large amount of conduction aid, namely, a positive electrode material for a battery of high energy density. There is provided a battery positive electrode material comprising a composite of conductive substance and sulfur and/or a sulfur compound having S—S bond, wherein there is disposed a composite microparticle layer having microparticles of conductive material cut into particles of sulfur and/or a sulfur compound having S—S bond. Further, there is provided a process for producing a battery positive electrode material, comprising conducting mechanofusion between particles of sulfur and/or above-mentioned sulfur compound as a raw material and microparticles of conductive material so as to obtain a composite material having a composite microparticle layer wherein the above microparticles are cut into the above particles.
    Type: Application
    Filed: September 22, 2005
    Publication date: December 13, 2007
    Applicants: AOI ELECTRONICS CO., LTD., K & W CORPORATION
    Inventors: Katsuhiko Naoi, Nobuhiro Ogihara, Wako Naoi, Noritake Ibuki, Kenji Kato
  • Patent number: 7301888
    Abstract: In a recording apparatus for reproducing information recorded on a recording medium by utilizing near-field light, the recording apparatus realizes reliable information reproduction with a simple structure. Illumination light 20 is illuminated to the recording medium 10 to create near-field light on a surface of the recording medium 10. The created near-field light is scattered by a microscopic aperture 12 formed in the aperture element 11 so that scattering light (propagation light) thereof is detected to create a reproduced signal. Derived from the created reproduced light a distance control signal representative of a distance between the microscopic aperture 12 and the recording medium 10. Based on the distance control signal, the aperture element 11 is controlled in position. Due to this, the microscopic aperture 12 is brought into proximity to the recording medium 10.
    Type: Grant
    Filed: January 24, 2006
    Date of Patent: November 27, 2007
    Assignee: Seiko Instruments Inc.
    Inventors: Nobuyuki Kasama, Norio Chiba, Yasuyuki Mitsuoka, Manabu Oumi, Kenji Kato, Takashi Niwa, Kunio Nakajima
  • Patent number: D561669
    Type: Grant
    Filed: July 2, 2007
    Date of Patent: February 12, 2008
    Assignee: Mazda Motor Corporation
    Inventors: Youichi Sato, Dai Kimura, Hitomaro Asano, Kazuya Hamada, Kenji Hirozawa, Kenji Kato