Patents by Inventor Kazuhiko Akimoto

Kazuhiko Akimoto 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: 20080176146
    Abstract: It is an object of the present invention to provide a photosensitive composition capable of forming permanent holograms with low light scattering loss and high diffraction efficiency, and a method for forming a pattern. A photosensitive composition and a pattern formation method using the photosensitive composition are characterized in that the photosensitive composition used to form a pattern by pattern exposure includes: (a) a polymerizable compound, (b) a photopolymerization initiator, and (c) organic fine particles.
    Type: Application
    Filed: March 16, 2006
    Publication date: July 24, 2008
    Applicants: NATIONAL UNIVERSITY CORPORATION THE UNIVERSITY OF ELECTRO-COMMUNICATIONS, NISSAN CHEMICAL INDUSTRIES, LTD.
    Inventors: Yasuo Tomita, Kouji Furushima, Kazuhiko Akimoto, Katsumi Chikama, Motohiko Hidaka, Keisuke Odoi
  • Publication number: 20020161223
    Abstract: An isocyanurate compound of the formula (1), 1
    Type: Application
    Filed: June 14, 2002
    Publication date: October 31, 2002
    Applicant: Nissan Chemical Industries, Ltd.
    Inventors: Toshiaki Takeyama, Motohiko Hidaka, Kazuhiko Akimoto
  • Patent number: 6414146
    Abstract: An isocyanurate compound of the formula (1), wherein R is a hydrogen atom or a methyl group, a method for producing said iscyanurate compound, characterized by reacting carbon disulfide with a triglycidyl isocyanurate compound, and a trithiol isocyanurate compound and a method for producing the same.
    Type: Grant
    Filed: January 29, 2002
    Date of Patent: July 2, 2002
    Assignee: Nissan Chemical Industries, Ltd.
    Inventors: Toshiaki Takeyama, Motohiko Hidaka, Kazuhiko Akimoto
  • Patent number: 6222074
    Abstract: The invention relates to a process for preparation of 4,6-diaminoresorcinol or salts thereof by reducing 4,6-bis(substituted)phenylazoresorcinol expressed by the formula [1] wherein, R denotes a halogen atom, an alkyl group having 1-5 carbon atoms, a hydroxycarbonyl group or an alkoxy group having 1-5 carbon atoms, n denotes 0 or any integer of 1-5, and two or more groups R may be same or different each other, for example, 4,6-bisphenylazoresorcinol, with hydrogen in the presence of a metal catalyst to obtain 4,6-diaminoresorcinol or salts thereof, characterized in that an aliphatic nitrile compound (for example, acetonitrile) is used as a solvent, or characterized in that the reduction is carried out by using at least one organic solvent selected from aliphatic nitrile compounds, aliphatic alcohols having 3-5 carbon atoms, dioxane and ethylene glycol monomethyl ether, etc. as a solvent and furthermore in the presence of a filter aid (for example, active carbon).
    Type: Grant
    Filed: July 25, 2000
    Date of Patent: April 24, 2001
    Assignee: Nissan Chemical Industries, Ltd.
    Inventors: Kenichi Tokunaga, Motohito Shiratori, Kazuhiko Akimoto, Hideo Suzuki, Isao Hashiba
  • Patent number: 5962740
    Abstract: A process for producing 4,6-bisphenylazoresorcinol of formula ?2! wherein R represents halogen atom, C.sub.1-5 alkyl group, hydroxycarbonyl or C.sub.1-5 alkoxy group, n represents 0 or an integer of 1 to 5, and two or more Rs are the same or different from each other, which comprises reacting resorcinol with a benzenediazonium salt of formula ?1! wherein R and n are the same as defined in the above formula ?1!, and X represents Cl, Br, OSO.sub.3 H or OPO.sub.3 H.sub.
    Type: Grant
    Filed: April 28, 1998
    Date of Patent: October 5, 1999
    Assignee: Nissan Chemical Industries, Ltd.
    Inventors: Kazuhiko Akimoto, Kenichi Tokunaga, Isao Hashiba, Hideo Suzuki, Yasuo Katsumura, Kazuo Osaki, Hideo Kawashita, Satoshi Yamazaki
  • Patent number: 5278950
    Abstract: An image processing system having an input controller, a file server, an image setter, and a work station, each of which includes a separate and independent CPU. These CPUs operate simultaneously to provide high speed image processing. This system allows a user to combine and interactively edit various types of information, such as characters, designs and images, when the information is displayed upon a work station. After a user interactively edits this image information, a composed final image is stored in memory. The system also eliminates pattern frames, representing contour border lines around segments of the image, by superimposing an eliminating frame upon the contour lines.
    Type: Grant
    Filed: November 18, 1992
    Date of Patent: January 11, 1994
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Yumiko Takei, Kazuhiko Akimoto, Fumio Hoshino
  • Patent number: 5268778
    Abstract: A liquid crystal display apparatus includes light shielding members provided longitudinally and latitudinally throughout the whole face of one transparent base plate out of a pair of base plates to be provided oppositely with a liquid crystal layer being disposed therebetween, having constant width and pitch, transparent conductive members provided on the liquid crystal layer side, of the above described one pair of light transparent base plate. It is characterized in that the non-display portion provided on the transparent base plate is provided with the light shielding member, with the above-described liquid crystal layer being disposed therebetween, and is overlapped by the light shielding member so as not to protrude from the above described light shield member.
    Type: Grant
    Filed: October 23, 1991
    Date of Patent: December 7, 1993
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Mitsuaki Shioji, Kunihiko Ito, Hiroshi Fukutani, Kazuhiko Akimoto
  • Patent number: 5264952
    Abstract: In a color liquid crystal display device, the shape of a color filter cannot be seen and coloring of areas other than a display area due to leaking light is prevented. By making a first and second segment electrodes in a two layer construction, it becomes possible to display two different display image planes in different colors with only the single layer type color liquid crystal display device. Further, sufficient contrast can be obtained by using a liquid crystal element for compensation. It is also possible to display two kinds of display image planes, namely a color display image plane and a black and white display image plane. Two kinds of color display image planes can be displayed because the color liquid crystal display device is made in a two layered construction. A so-called normally black display and normally white display can be switched.
    Type: Grant
    Filed: November 20, 1990
    Date of Patent: November 23, 1993
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Hiroshi Fukutani, Kunihiko Ito, Kazuhiko Akimoto, Mitsuaki Shioji, Hiroshi Takanashi
  • Patent number: 5247372
    Abstract: An image processing system is provided with an input controller, a file server, an image setter and a work station each having respectively an independent CPU, e.g., a microprocessor, a microcomputer or the like, which allows each unit to operate independently in an parallel manner so as to carry out image processing efficiently at a high speed, while a hard copy or a block copy for printing with a high quality image being fit into a frame on a layout pasteboard by means of an image output apparatus can be obtained by interactive-editing information on the layout pasteboard as well as designs and characters, to minimize the capacity of the memory.
    Type: Grant
    Filed: September 6, 1990
    Date of Patent: September 21, 1993
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Yasuhiro Tsutamori, Kazuhiko Akimoto
  • Patent number: 5233449
    Abstract: In a liquid-crystal color display having a pair of light-transmitting substrates disposed opposite each other sandwiching a liquid crystal layer between them and color selecting members and a light blocking member provided on one of the pair of light-transmitting substrates, light-transmitting pixel electrodes are disposed on the liquid crystal layer side of one of the light-transmitting substrates. The pixel electrodes disposed adjacent to each other correspond to different color selecting members and are formed extending into each other's display area in alternating fashion. Accordingly, display patterns formed by adjacent pixel electrodes are allowed to overlap each other, thus making it possible to increase the number of display patterns per unit display area.
    Type: Grant
    Filed: November 4, 1991
    Date of Patent: August 3, 1993
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Mitsuaki Shioji, Kunihiko Ito, Hiroshi Fukutani, Kazuhiko Akimoto
  • Patent number: 5223962
    Abstract: Disclosed is a liquid-crystal color display having a pair of light-transmitting substrates disposed opposite each other sandwiching a liquid crystal layer between them and color selecting members and a light blocking member provided on one of the pair of light-transmitting substrates, wherein the shape of each pixel defined by the color selecting members and the light blocking member is a parallelogram with all four angles other than 90.degree.. Accordingly, the liquid-crystal color display of the invention is capable of displaying sloping letters such as italics and other sloping patterns as naturally sloping patterns easy to recognize.
    Type: Grant
    Filed: November 6, 1991
    Date of Patent: June 29, 1993
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Mitsuaki Shioji, Kunihiko Ito, Hiroshi Fukutani, Kazuhiko Akimoto
  • Patent number: 5216414
    Abstract: A color liquid crystal display device in which a color filter is provided over the entire surface of the glass substrate. In a first embodiment, display electrodes extend over a plurality of color filter sectors to form segment electrodes. In a second embodiment, the transmissivity of light passing through the liquid crystal layer can be varied in levels by making the display electrodes in two-layer, operating voltage on each of the electrodes independently, and varying in levels the amplitude of voltage applied on the liquid crystal layer by the display electrodes. In a third embodiment, the amount of light transmitted in the display area of a color filter sector is controlled by two or more display electrodes which divide up the display area.
    Type: Grant
    Filed: November 15, 1990
    Date of Patent: June 1, 1993
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Hiroshi Fukutani, Kunihiko Ito, Mitsuaki Shioji, Kazuhiko Akimoto, Yasuhiro Inamasu, Toshihiro Matsumoto, Hiroshi Takanashi
  • Patent number: 5163122
    Abstract: An image processing system which includes an input controller having a CPU adapted to dot and compress density or tone data for an image read out by an input unit and for temporarily staying said compressed image data at a buffer; a work station providing a second CPU adapted to picture-edit not only a code information edited by an editing input unit but also the image data by the use of an input operating means and a display means; a file server including a third CPU connected to the input controller and the work station by bus lines and for storing the image data, code information and edited data picture-edited by the work station in the file server; and an image setter having a fourth CPU for reading out the edited data stored in the file server and subjecting the edited data to a required data processing, thereby outputting an image over an image output unit characterized in that the input controller, the file server, the work station and the image setter are individually and independently subjected to an
    Type: Grant
    Filed: January 27, 1992
    Date of Patent: November 10, 1992
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Hitoshi Urabe, Hiroshi Horikawa, Kazuhiko Akimoto, Daisuke Nakaya, Masahiko Mizuno
  • Patent number: 5132830
    Abstract: In a color liquid crystal display device of the invention, light-blocking members of predetermined configurations (characters, graphics etc.) are disposed on the surface of one side of a liquid crystal display element, that is to say the surface on the side opposite to the light source, and the predetermined configurations are displayed on the color liquid crystal display device by blocking the light from the light source with the light-blocking members. Further, a light-scattering plate is disposed between the light source and the liquid crystal display element, or between the liquid crystal display element and the light-blocking members. It is possible to allow transmission of a part of the light blocked by the light-blocking members by scattering the light which is transmitted through the liquid crystal display element with the arrangement of the light-scattering plate.
    Type: Grant
    Filed: December 19, 1990
    Date of Patent: July 21, 1992
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Hiroshi Fukutani, Kunihiko Ito, Kazuhiko Akimoto
  • Patent number: 5018078
    Abstract: This invention is an image processing system which includes an input controller having a CPU adapted to dot and compress density or tone data for an image read out by an input unit and for temporarily staying said compressed image data at a buffer; a work station providing a second CPU adapted to picture-edit not only a code information edited by an editing input unit but also the image data by the use of an input operating means and a display means; a file server including a third CPU connected to the input controller and the work station by bus lines and for storing the image data, code information and edited data picture-edited by the work station in the file server; and an image setter having a fourth CPU for reading out the edited data stored in the file server and subjecting the edited data to a required data processing, thereby outputting an image over an image output unit characterized in that the input controller, the file server, the work station and the image setter are individually and independent
    Type: Grant
    Filed: December 8, 1988
    Date of Patent: May 21, 1991
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Hitoshi Urabe, Hiroshi Korikawa, Kazuhiko Akimoto, Daisuke Nakaya, Masahiko Mizuno
  • Patent number: 4842379
    Abstract: A color image recording apparatus employing a liquid crystal shutter array in which a color picture can be recorded with high quality using a small-sized apparatus and without requiring complex operations. A liquid crystal shutter array of the apparatus includes pixel electrodes and a shutter common electrode disposed in opposition to the pixel electrodes with a gap therebetween filled with a liquid crystal, a pair of transparent substrates supporting the pixel electrodes and the shutter common electrode by sandwiching the pixel electrodes and the shutter common electrode therebetween, and polarization plates stacked on the respective outsides of the transparent plates. A color liquid crystal layer is stacked on the liquid crystal shutter array constituted by first and second common electrodes disposed in opposition to each other with the gap therebetween filled with an ECB mode liquid crystal, and a pair of transparent substrates supporting the common electrodes.
    Type: Grant
    Filed: November 13, 1987
    Date of Patent: June 27, 1989
    Assignees: Fuji Photo Film Co., Ltd., Sharp Kabushiki Kaisha
    Inventors: Hisao Oishi, Kazuhiko Yanagihara, Tadashi Miyakawa, Takeshi Nakamura, Kazuhiko Akimoto, Mitsuaki Shioji
  • Patent number: 4836652
    Abstract: A liquid crystal shutter array requiring no separate focusing lens system. Microlenses for focusing the light incident upon a matrix of pixel electrodes are formed in a transparent substrate of the shutter assembly. A refractive index of light of each of the microlenses is set in a manner such that the incident angle .theta. of the light incident on the liquid crystal of the shutter through the microlenses satisfies; ##EQU1## where P, a, and d respectively represent the size of each of the photomasks, the length of a portion wherein each of the photomasks and corresponding ones of the pixel electrodes overlap, and the thickness of the transparent substrate on the light output side.
    Type: Grant
    Filed: November 13, 1987
    Date of Patent: June 6, 1989
    Assignees: Fuji Photo Film Co., Ltd., Sharp Kabushiki Kaisha
    Inventors: Hisao Oishi, Kazuhiko Yanagihara, Tadashi Miyakawa, Takeshi Nakamura, Kazuhiko Akimoto, Mitsuaki Shioji
  • Patent number: 4790632
    Abstract: For recording an image on a photosensitive material with the employment of a liquid crystal device, the device used therein is conventionally constructed so as to modulate an amount of light rays transmitted therethrough or reflected thereby commonly by the control of an amount of electric voltage impressed to the liquid crystal device and/or impression timing or frequencies thereof. In this instance, although the light rays irradiated are considered normally as parallel, they are not intact strictly parallel light rays, and consequently unless the light rays transmitted from the device are converged by Selfoc lens arrays and the like, sufficient resolution can hardly be obtained on the photosensitive material on account of the light rays still having comparatively large diffusion coefficients.
    Type: Grant
    Filed: August 11, 1987
    Date of Patent: December 13, 1988
    Assignees: Fuji Photo Film Co., Ltd., Sharp Kabushiki Kaisha
    Inventors: Tadashi Miyakawa, Kazuhiko Yanagihara, Hisao Oishi, Tsunehiko Takahashi, Takeshi Nakamura, Kazuhiko Akimoto, Mitsuaki Shioji