Patents by Inventor Makoto Kikuchi

Makoto Kikuchi 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: 6280920
    Abstract: A silver halide photographic emulsion and a silver halide photosensitive material containing the emulsion are disclosed. The grains contained in the emulsion have a variation coefficient of distribution of an equivalent-circle diameter of all the grains of 40% or less, and 50% or more in number of all the grains in the emulsion satisfy requirements (i) to (iii) below: (i) silver iodobromide or silver bromochloroiodide tabular grains having (111) faces as major surfaces, (ii) the equivalent-circle diameter is 3.5 &mgr;m or more and a thickness is 0.25 &mgr;m or less, and (iii) a distance between twin planes of the tabular grain is 0.016 &mgr;m or less.
    Type: Grant
    Filed: July 28, 2000
    Date of Patent: August 28, 2001
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Yoichi Maruyama, Makoto Kikuchi, Masaaki Miki, Tadanobu Sato
  • Patent number: 6238014
    Abstract: An electromagnetic valve is fitted with relief means and is made to have a compact diameter without increasing its axial length is provided. The electromagnetic valve is provided with a push bar capable of pushing the valve body toward the valve seat and a relief spring for urging the push bar toward the valve body are contained in a guide hole formed in the central portion of the moving core, wherein a stopper is provided to the moving core, the stopper being used for holding the valve body open by defining a limit to which the push bar is moved forward with respect to the valve body when the moving core is moved backward and for allowing the valve body to be closed by the relief spring when the moving core is moved forward. Thus, the valve body and the push bar are axially arranged separately from each other.
    Type: Grant
    Filed: April 20, 1999
    Date of Patent: May 29, 2001
    Assignee: Nissin Kogyo Co., Ltd.
    Inventors: Naotoshi Tamai, Takaomi Sirase, Naoki Masuda, Makoto Kikuchi
  • Patent number: 5988062
    Abstract: A light radiating device of a heatsensitive perforating device includes a casing having an opened lower surface arranged at a perforating plane of a heatsensitive stencil sheet; a light emitting device arranged within the casing, the light emitting means having a bulb portion, a base portion and a contact; an electrode connected to a power supply for energizing the light emitting device, said electrode contacting with the contact of the light emitting device; lower side reflection mirrors contacting with the perforating plane of the heatsensitive stencil sheet; upper side reflection mirrors continuous with the lower side reflection mirrors in a predetermined angle; an upper reflection mirror arranged continuous with the upper side reflection mirrors and in parallel with the perforating plane of the heatsensitive stencil sheet; a holding device for holding the light emitting device in such a manner that a line passing straight through the contact, the center of the base portion and the center of the lower surf
    Type: Grant
    Filed: December 30, 1997
    Date of Patent: November 23, 1999
    Assignee: Riso Kagaku Corporation
    Inventor: Makoto Kikuchi
  • Patent number: 5976771
    Abstract: A heat-developable light-sensitive material including a support and at least one light-sensitive silver halide emulsion layer provided on the support, the light-sensitive silver halide emulsion layer containing light-sensitive silver halide grains, a compound to form a dye through coupling reaction with an oxidized product of a developing agent, and a binder, characterized in that the light-sensitive silver halide emulsion layer includes an emulsion containing a developing agent and tabular silver halide grains having a mean grain thickness of 0.01-0.07 .mu.m. The light-sensitive material enables to provide a convenient and quick method of forming color images.
    Type: Grant
    Filed: August 22, 1997
    Date of Patent: November 2, 1999
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Takuji Kosugi, Kazuki Uehara, Makoto Kikuchi
  • Patent number: 5965332
    Abstract: A silver halide color photosensitive material comprises a support provided thereon with a photosensitive silver halide, a developing agent, a coupler, and a binder. After exposure, the photosensitive material is placed, onto a processing material comprising a support provided with a processing layer thereon which contains a base and/or a precursor of a base, with water being present between the photosensitive material and the processing material in an amount of 1/10through 1 times that required to maximally swell the layers of the materials. The resultant assembly is heated to form an image on the photosensitive material. The photosensitive material includes an emulsion in which tabular silver halide grains having an aspect ratio of 2 to 30 account for 50% to 100% of the total projected area of all silver halide grains and in which 50% to 100% of all silver halide grains in number include 10 or more dislocation lines per grain. A method of forming images using this photosensitive material is also disclosed.
    Type: Grant
    Filed: August 19, 1997
    Date of Patent: October 12, 1999
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Makoto Kikuchi
  • Patent number: 5955901
    Abstract: A wave shaping circuit for a semiconductor device testing apparatus reduces discrepancies in timing of signals by shortening lengths of signal transmission paths. The scale of the circuit is restrained by reducing the number of connecting lines between a modulation waveform generator and buffer circuits. A set signal and a reset signal generated by the modulation waveform generator are input to a first wave shaping SR register which produces a single pattern waveform to be applied to devices under test. The single pattern waveform is multiplied n-fold by the buffer circuit. Signals from the buffer circuit are received by invert/noninvert circuits which provide invert signals and noninvert signals. Differential circuits receive the invert/noninvert signals to generate set signals and reset signals having minimal discrepancies in timing which are input to second wave shaping SR registers.
    Type: Grant
    Filed: February 19, 1998
    Date of Patent: September 21, 1999
    Assignee: Ando Electric Co., Ltd.
    Inventors: Makoto Kikuchi, Kiyotaka Mizuno
  • Patent number: 5923199
    Abstract: A scale of circuit is reduced when a plurality of variable delay circuits are provided with respect to the same signal. A variable delay circuit is constructed such that variable delay circuit elements each comprising a delay circuit element composed of buffer gates each having an identical amount of delay connected in series and a selector e for selecting the input and output of the delay circuit element are connected in series in n-1 stages, wherein the number of the delay elements of the delay circuit element in each variable delay circuit element is 2.sup.i-1 (i: number of stages) in the order from the final stage.
    Type: Grant
    Filed: December 18, 1996
    Date of Patent: July 13, 1999
    Assignee: Ando Electric Co., Ltd.
    Inventor: Makoto Kikuchi
  • Patent number: 5919397
    Abstract: A ferroelectric liquid crystal composition exhibiting a novel chiral smectic phase is disclosed. In this novel phase, a director of liquid crystal molecules may settle in a third stable state which is distinguished from known bistable states of liquid crystal molecules in a ferroelectric chiral smectic C phase. By using this composition in a display element, a dichromatic display having a quick response can be provided on a third-colored display ground by applying a controlled electric field across the composition.
    Type: Grant
    Filed: May 2, 1997
    Date of Patent: July 6, 1999
    Assignee: Chisso Corporation
    Inventors: Mitsuyoshi Ichihashi, Kanetsugu Terashima, Makoto Kikuchi, Fusayuki Takeshita, Kenji Furakawa
  • Patent number: 5888704
    Abstract: The present invention relates to a silver halide color photographic light-sensitive material which has on a substrate at least one photographic light-sensitive layer comprising a light-sensitive silver halide emulsion containing epitaxial silver halide grains having at least one kind of silver salt epitaxy formed on the surface of silver halide tabular grains acting as a host, a developing agent, a compound capable of forming a dye by a coupling reaction with the oxidation product of said developing agent, and a binder. The present invention provides a silver halide color photographic light-sensitive material which few adverse effects on the environment, and which is well suited for the simple and rapid process, and which provides graininess of good and high-sensitivity, and which is especially excellent in storage life.
    Type: Grant
    Filed: September 24, 1997
    Date of Patent: March 30, 1999
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Makoto Kikuchi
  • Patent number: 5781694
    Abstract: The heatsensitive stencil sheet perforating device of this invention includes a pedestal for an original mounted thereon; a pressing body attached pivotaly on one end of the pedestal for supporting a heatsensitive stencil sheet on an area corresponding to the original mounted on the pedestal; a light irradiation device attached detachably to the pressing body in a defined state, including a light source for irradiating the heatsensitive stencil sheet; a power supply device installed inside of the pressing body, for supplying electric energy to emit light from the light source; a first contact member attached to the light irradiation device, connected to the light source; a second contact member attached to the pressing member, connected to the power source of the power supply device, so as to come into contact with the first contact member when the light irradiation device is engaged in the pressing body in a defined state; and a support member attached to the pressing body, for supporting the light irradiati
    Type: Grant
    Filed: April 18, 1996
    Date of Patent: July 14, 1998
    Assignee: Riso Kagaku Corporation
    Inventors: Makoto Kikuchi, Kengo Kodama
  • Patent number: 5711218
    Abstract: A light radiating device is formed of a casing having an opened lower surface arranged at a perforating plane of a heatsensitive stencil sheet; a light emitting device arranged within the casing; and reflection mirrors including lower side reflection mirror contacted with the perforating plane of the heatsensitive stencil sheet, an upper side reflection mirror in continuous with the lower side reflection mirror in a predetermined angle and an upper reflection mirror arranged in continuous with the upper side reflection mirror and in parallel with the perforating plane of the heatsensitive stencil sheet. The mirrors are arranged in the casing and reflect light from the light emitting means against the perforating plane of the heatsensitive stencil sheet.
    Type: Grant
    Filed: April 26, 1996
    Date of Patent: January 27, 1998
    Assignee: Riso Kagaku Corporation
    Inventor: Makoto Kikuchi
  • Patent number: 5686980
    Abstract: A light-shielding film, and a liquid crystal display device including the light-shielding film, and a material suitable for forming the light-shielding film. The light-shielding film includes at least a film prepared from an inorganic insulating material and fine particles of metal and/or semi-metal dispersed in the insulating material film. The liquid crystal display device includes a display pixel electrode array substrate, a counter substrate, and a liquid crystal layer interposed between the two substrates. The light-shielding film is formed on the display pixel electrode array substrate of the liquid crystal display device.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: November 11, 1997
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Hideo Hirayama, Nobuki Ibaraki, Koji Hidaka, Kiyotsugu Mizouchi, Michiya Kobayashi, Takashi Ishigami, Ryo Sakai, Makoto Kikuchi
  • Patent number: 5658492
    Abstract: A composition containing a smectic C compound, having a .DELTA..epsilon. of negative value and enabling to effect a high speed response; a ferroelectric chiral smectic C liquid crystal composition using the same; and a ferroelectric liquid crystal display device using the ferroelectric chiral smectic C liquid crystal composition are provided,which composition containing a smectic C compound comprises at least one compound expressed by the formula (I) ##STR1## wherein R.sup.1 and R.sup.2 each represent different linear alkyl groups of 1 to 9 C, andat least one compound-expressed by the formula (II) ##STR2## wherein R.sup.3 and R.sup.4 each represent the same or different linear alkyl groups of 1 to 18 C and X is H or F.
    Type: Grant
    Filed: January 24, 1996
    Date of Patent: August 19, 1997
    Assignees: Chisso Corporation, Sharp Kabushiki Kaisha
    Inventors: Katsuyuki Murashiro, Eiji Okabe, Makoto Kikuchi, Mayumi Tanabe, Masatoshi Fukushima, Shinichi Saito, Hitoshi Takeda, Makoto Shiomi, Takashi Kaneko, Motonari Matsuki, Mitsuhiro Koden
  • Patent number: 5580713
    Abstract: A silver halide color reversal photographic light-sensitive material includes at least one blue-sensitive silver halide emulsion layer, at least one green-sensitive silver halide emulsion layer, and at least one red-sensitive silver halide emulsion layer, formed on a support. At least one light sensitive emulsion layer contains silver halide grains having a silver halide phase formed in the presence of an iodide ion-releasing agent, under controlled release of iodide ions from the releasing agent. At least one hydrophilic colloid layer contains a certain heterocyclic compound or a certain DIR compound.
    Type: Grant
    Filed: January 23, 1995
    Date of Patent: December 3, 1996
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Takefumi Hara, Makoto Kikuchi, Hisashi Okamura
  • Patent number: 5535353
    Abstract: An address generating circuit for data compression includes an X-address generating circuit (10), a Y-address generating circuit (20), an XY-address generation control circuit (30) and a defect analyzing memory (40). Each of the circuits (10) and (20) include a flip-flop (3A), a selector (2), an upcounter (4), an adder (5), a down-counter (6) and a comparator (1). The control circuit (30) receives address end signals J and address carry signals L from the circuits (10) and (20) to control the circuits (10) and (20). The memory (40) has address signals K from the circuits (10) and (20). Processing time required to check defects of a large capacity memory device is reduced because address generators are provided not only on the X-address side but also on the Y-address side and the compression ratio is set in the address generating circuit, thereby accelerating the defect analysis.
    Type: Grant
    Filed: June 8, 1993
    Date of Patent: July 9, 1996
    Assignee: Ando Electric Co., Ltd.
    Inventors: Keiji Tanabe, Makoto Kikuchi
  • Patent number: 5529717
    Abstract: A composition containing a smectic C compound, having a .DELTA..epsilon. of negative value and enabling to effect a high speed response; a ferroelectric chiral smectic C liquid crystal composition using the same; and a ferroelectric liquid crystal display device using the ferroelectric chiral smectic C liquid crystal composition are provided,which composition containing a smectic C compound comprises at least one compound expressed by the formula (I) ##STR1## wherein R.sup.1 and R.sup.2 each represent different linear alkyl groups of 1 to 9 C, andat least one compound expressed by the formula (II) ##STR2## wherein R.sup.3 and R.sup.4 each represent the same or different linear alkyl groups of 1 to 18 C and X is H or F.
    Type: Grant
    Filed: June 30, 1994
    Date of Patent: June 25, 1996
    Assignees: Chisso Corporation, Sharp Kabushiki Kaisha
    Inventors: Katsuyuki Murashiro, Eiji Okabe, Makoto Kikuchi, Mayumi Tanabe, Masatoshi Fukushima, Shinichi Saito, Hitoshi Takeda, Makoto Shiomi, Takashi Kaneko, Motonari Matsuki, Mitsuhiro Koden
  • Patent number: 5527664
    Abstract: A silver halide photographic emulsion, a method of preparing the same, and a light-sensitive material containing this emulsion, wherein silver halide grains are formed while rapidly producing iodide ions from an iodide ion-releasing agent represented by Formula (I) below:R--I Formula (I)wherein R represents a monovalent organic residue which releases the iodine atom in the form of iodide ion upon reacting with a base and/or a nucleophilic reagent.
    Type: Grant
    Filed: March 19, 1993
    Date of Patent: June 18, 1996
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Makoto Kikuchi, Morio Yagihara, Hisashi Okamura, Hiroshi Kawamoto
  • Patent number: 5525460
    Abstract: A silver halide photographic emulsion comprising silver halide grains which are formed while iodide ions are rapidly being generated from an iodide ion-releasing agent represented by Formula (I) below, and which are chemically sensitized with a selenium sensitizer. Formula (I)R--Iwhere R represents a monovalent organic residue which releases the iodine atom in the form of iodide ions upon reacting with a base and/or a nucleophilic reagent.
    Type: Grant
    Filed: March 19, 1993
    Date of Patent: June 11, 1996
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Yoichi Maruyama, Morio Yagihara, Hisashi Okamura, Hiroshi Kawamoto, Makoto Kikuchi
  • Patent number: 5523621
    Abstract: In order to set the potential of corner leads formed from a lead frame equal to that of power source leads such as ground, a multilayer wiring substrate is mounted on a mounting substrate of a package and its potential is set equal to that of the power source leads, or a multilayer mounting substrate is formed to electrically connect electrode pads of a semiconductor substrate to the power source and corner leads by bonding wires. The inductance of the power source leads can be lowered, and the number of signal leads interposed between the power source leads can be reduced to the minimum. Consequently, variations in frequency used in the entire package can be prevented, and impedance matching can be made.
    Type: Grant
    Filed: May 11, 1995
    Date of Patent: June 4, 1996
    Assignee: Kabushiki Kaisha Toshiba
    Inventor: Makoto Kikuchi
  • Patent number: 5498828
    Abstract: An object of the present invention is to improve retainability (distribution coefficient) for C-14 of a radioactive waste solidified body. The waste is solidified with a solidification agent containing a soluble substance which yields an insoluble substance by a reaction with carbonic ions, insoluble carbonates, or a mixture of the above substances. And, as for a pre-treatment, the soluble substance which yields an insoluble substance by a reaction with carbonic ions is previously reacted with liquid waste, and subsequently the solidification is performed. The retainability (distribution coefficient) for C-14 of the solidified body of the waste increases about one order.
    Type: Grant
    Filed: March 19, 1993
    Date of Patent: March 12, 1996
    Assignees: Hitachi, Ltd., Hitachi Engineering & Services Co., Ltd.
    Inventors: Masami Matsuda, Takashi Nishi, Makoto Kikuchi, Tatsuo Izumida, Shin Tamata, Yoshimasa Kiuchi