Patents by Inventor Shigeru Fujita

Shigeru 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).

  • Patent number: 8800337
    Abstract: A lead pin correction device includes a holding unit holding an electronic device having lead pins; a pressing unit pressing the electronic device held by the holding unit in an extending direction of the lead pins; and a correction fixture including holes having a shape corresponding to a shape of the lead pins after correction. Further, the shape of the lead pins is corrected so as to fit the shape of the holes by inserting the lead pins into the holes by pressing the electronic device with the pressing unit while distal ends of the lead pins are inserted into the holes, the electronic device being held by the holding unit.
    Type: Grant
    Filed: August 23, 2012
    Date of Patent: August 12, 2014
    Assignee: Ricoh Company, Ltd.
    Inventor: Shigeru Fujita
  • Patent number: 8802286
    Abstract: A negative electrode for a secondary battery includes a negative electrode current collector and a negative electrode active material layer provided in the negative electrode current collector and which is alloyed with the negative electrode current collector at least at a part of an boundary face between it and the negative electrode current collector, wherein the negative electrode current collector has a first surface on which the negative electrode active material layer is formed and a second surface on which the negative electrode active material layer is not formed, the negative electrode having a portion in which the second surfaces of the negative electrode current collector are opposed to each other.
    Type: Grant
    Filed: January 30, 2007
    Date of Patent: August 12, 2014
    Assignee: Sony Corporation
    Inventors: Isamu Konishiike, Kenichi Kawase, Shigeru Fujita, Momoe Adachi
  • Patent number: 8785530
    Abstract: A crosslinkable rubber composition comprising 0.2 to 10 parts by weight of an aromatic secondary amine-based anti-aging agent and 0.5 to 20 parts by weight of a polyamine-based crosslinking agent with respect to 100 parts by weight of a nitrile rubber including an ?,?-ethylenically unsaturated nitrile unit and an ?,?-ethylenically unsaturated dicarboxylic acid monoester unit, and with iodine value of 120 or less. The present invention can provide a crosslinkable rubber composition, providable of a cross-linked rubber excellent in a variety of properties such as mechanical strength and small in compression set, and a cross-linked rubber obtained by cross-linking the rubber composition.
    Type: Grant
    Filed: December 14, 2012
    Date of Patent: July 22, 2014
    Assignee: Zeon Corporation
    Inventors: Hiroyasu Nagamori, Shigeru Fujita, Kiyonori Umetsu, Akira Tsukada
  • Patent number: 8771876
    Abstract: A positive electrode active material includes a lithium complex oxide particle, and a coating layer formed on at least a part of the surface of the lithium complex oxide particle. The lithium complex oxide particle is a lithium complex oxide particle composed mainly of nickel. The coating layer contains an oxo acid and/or an oxo acid compound, an acidity of the surface of the lithium complex oxide particle composed mainly of nickel is increased by the coating layer. The acidity is determined based on a pH of a supernatant of water in a state where after 1.0 part by weight of the lithium complex oxide particle composed mainly of nickel and having a coating layer formed thereon is dispersed in 50 parts by weight of water. The lithium complex oxide particle sediments, and the pH is less than 8.0.
    Type: Grant
    Filed: April 15, 2010
    Date of Patent: July 8, 2014
    Assignee: Sony Corporation
    Inventors: Haruo Watanabe, Tomoyo Ooyama, Yosuke Hosoya, Shigeru Fujita
  • Patent number: 8742006
    Abstract: A cross-linkable nitrile rubber composition comprising a nitrile rubber (A1) including an ?,?-ethylenically unsaturated nitrile monomer unit and having iodine value of 120 or less, silica (B1) having CaO value determined by X-ray fluorescence composition analysis of 0.5 wt % or more, and a crosslinking agent (C1). According to the present invention, a cross-linkable nitrile rubber composition, capable of giving a highly-saturated cross-linked nitrile rubber having excellent mechanical properties such as elongation and small compression set, and excellent in workability, and a cross-linked rubber obtained by crosslinking the rubber composition can be provided.
    Type: Grant
    Filed: April 16, 2007
    Date of Patent: June 3, 2014
    Assignee: Zeon Corporation
    Inventors: Hiroyasu Nagamori, Shigeru Fujita
  • Patent number: 8652577
    Abstract: A method of manufacturing a cathode active material is provided. The method includes the step of precipitating step for providing a solution of a deposition component onto composite oxide particles including lithium Li and nickel Ni, removing a solvent from the solution on the composite oxide particles within a short time period, and precipitating the deposition component on surfaces of the composite oxide particles; and heating step for heating under an oxidation atmosphere the composite oxide particles with the deposition component precipitated on the surfaces.
    Type: Grant
    Filed: February 5, 2009
    Date of Patent: February 18, 2014
    Assignee: Sony Corporation
    Inventors: Haruo Watanabe, Tomoyo Ooyama, Hideto Azuma, Shigeru Fujita
  • Patent number: 8462387
    Abstract: Multi-valued image data stored in an input image buffer are read out for each time of scans, and the color space conversion and image distribution are performed to read multi-valued image data. The binarized result is sent to the print buffer and at the same time, is accumulated as the print information to execute processing of reflecting it to the image distribution processing of the next pass. It is possible to appropriately restrict the density fluctuation due to the print position shift between planes without providing pixels where dots are overlapped and printed more than necessary. With this, by accumulating the multi-valued image data at the stage of RGB in the input image buffer to read out data stored in input image buffer for executing processing, a capacity required for input image buffer does not change even if the number of the ink colors provided on the printing apparatus increases.
    Type: Grant
    Filed: January 4, 2010
    Date of Patent: June 11, 2013
    Assignee: Canon Kabushiki Kaisha
    Inventors: Shigeru Fujita, Akira Ichimura, Yasunori Fujimoto, Shinichi Miyazaki, Hironori Nakamura
  • Patent number: 8420247
    Abstract: The present invention relates to a crosslinking polymer-supported porous film for battery separator, including: a porous film; and a crosslinking polymer supported on the porous film, the crosslinking polymer having a plurality of cation-polymerizable functional groups in the molecule thereof and having oxyalkylene groups represented by general formula (I): in which the Rs may be the same or different and each independently represent a hydrogen atom or a methyl group, and n represents an integer of 4 to 9, in a side chain thereof.
    Type: Grant
    Filed: June 6, 2008
    Date of Patent: April 16, 2013
    Assignees: Nitto Denko Corporation, Sunstar Engineering Inc.
    Inventors: Hiroyoshi Take, Shuhei Murata, Shigeru Fujita, Yoshihiro Uetani, Shinji Bessho, Satoshi Nishikawa
  • Publication number: 20130047693
    Abstract: A lead pin correction device includes a holding unit holding an electronic device having lead pins; a pressing unit pressing the electronic device held by the holding unit in an extending direction of the lead pins; and a correction fixture including holes having a shape corresponding to a shape of the lead pins after correction. Further, the shape of the lead pins is corrected so as to fit the shape of the holes by inserting the lead pins into the holes by pressing the electronic device with the pressing unit while distal ends of the lead pins are inserted into the holes, the electronic device being held by the holding unit.
    Type: Application
    Filed: August 23, 2012
    Publication date: February 28, 2013
    Applicant: RICOH COMPANY, LTD.
    Inventor: Shigeru Fujita
  • Patent number: 8362121
    Abstract: A crosslinkable rubber composition comprising 0.2 to 10 parts by weight of an aromatic secondary amine-based anti-aging agent and 0.5 to 20 parts by weight of a polyamine-based crosslinking agent with respect to 100 parts by weight of a nitrile rubber including an ?,?-ethylenically unsaturated nitrile unit and an ?,?-ethylenically unsaturated dicarboxylic acid monoester unit, and with iodine value of 120 or less. The present invention can provide a crosslinkable rubber composition, providable of a cross-linked rubber excellent in a variety of properties such as mechanical strength and small in compression set, and a cross-linked rubber obtained by cross-linking the rubber composition.
    Type: Grant
    Filed: March 5, 2012
    Date of Patent: January 29, 2013
    Assignee: Zeon Corporation
    Inventors: Hiroyasu Nagamori, Shigeru Fujita, Kiyonori Umetsu, Akira Tsukada
  • Publication number: 20130003389
    Abstract: Disclosed is an optical sheet with an adhesive layer, which has excellent adhesion, excellent aggregability and excellent long-term durability, and wherein an adhesive layer part does not fill recesses and projections over time, said recesses and projections having been formed by processing. Specifically, an optical sheet with an adhesive layer is produced by arranging an adhesive layer on a recessed and projected surface of an optical film which has been subjected to processing for forming recesses and projections. In addition, the optical sheet with an adhesive layer is bonded to various light sources or image display elements, thereby obtaining light sources or image display devices that have improved light extraction efficiency without changing the designs of the light sources or image display elements, while securing uniform light emission and improving viewing angles especially in devices that comprises the image display elements.
    Type: Application
    Filed: March 14, 2011
    Publication date: January 3, 2013
    Applicant: NITTO DENKO CORPORATION
    Inventors: Yutaka Moroishi, Masatsugu Higashi, Shigeru Fujita, Fumiko Nakano, Tetsuo Inoue, Akiko Tanaka, Aimi Matsuura
  • Publication number: 20120321911
    Abstract: A battery is composed of a positive electrode in which a positive electrode active material layer including a positive electrode active material is formed on a positive electrode collector, a negative electrode in which a negative electrode active material layer including a negative electrode active material is formed on a negative electrode collector, a separator provided between the positive electrode and the negative electrode, and an electrolyte impregnated in the separator. The battery further includes at least one of a heteropoly acid and a heteropoly acid compound as an additive at least in one of the positive electrode, the negative electrode, the separator, and the electrolyte.
    Type: Application
    Filed: June 17, 2010
    Publication date: December 20, 2012
    Applicant: SONY CORPORATION
    Inventors: Haruo Watanabe, Tomoyo Ooyama, Shunsuke Saito, Shinichi Katayama, Hideki Nakai, Yoshihiro Kudo, Yoshikazu Kato, Muneaki Ando, Koji Morita, Ichiro Yamada, Nobuya Okano, Noritoshi Araki, Shuhei Sugita, Kunihiko Hayashi, Yosuke Hosoya, Tadahiko Fujita, Shigeru Fujita
  • Publication number: 20120257837
    Abstract: A data decoding device is provided that can decode, at high speed and with low cost, image data encoded at a high compression rate. Provided are an input unit to be input a first encoded data, a second encoded data, the second encoded data and reference data of the line image data; an acquisition unit to acquire, a first reference data to decode the first encoded data to the higher-end data and a second reference data to decode the second encoded data to the lower-end data; a decoding unit to decode the second encoded data to the lower-end data on the basis of the second reference data while the first encoded data is decoded to the higher-end data on the basis of the first reference data and; and a combining means to combine the higher-end data and the lower-end data that were decoded by the decoding unit.
    Type: Application
    Filed: April 4, 2012
    Publication date: October 11, 2012
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Shigeru Fujita, Hiroki Horikoshi, Hiroyuki Hosogoshi
  • Patent number: 8277968
    Abstract: Provided is a reactive polymer-supporting porous film for use as a battery separator which comprises a porous substrate film and a partially crosslinked reactive polymer supported on the porous substrate film, the partially crosslinked reactive polymer being obtained by the reaction of a crosslinkable polymer having at least one reactive group selected from the group consisting of 3-oxetanyl group and epoxy group in the molecule with a monocarboxylic acid. Further, provided is a method of manufacturing a battery which comprises layering electrodes on the reactive polymer-supporting porous film.
    Type: Grant
    Filed: January 10, 2006
    Date of Patent: October 2, 2012
    Assignees: Nitto Denko Corporation, Sunstar Giken Kabushiki Kaisha
    Inventors: Tomoaki Ichikawa, Yoshihiro Uetani, Shigeru Fujita, Keisuke Kii, Satoshi Nishikawa, Shinji Bessyo
  • Patent number: 8277897
    Abstract: A reactive polymer-supporting porous film is provided as a battery separator which comprises a porous substrate film and a partially crosslinked reactive polymer supported on the porous substrate film. The partially crosslinked reactive polymer is obtained by the reaction of a crosslinkable polymer having at least one group selected from the 3-oxetanyl group and epoxy group reactive with a polycarboxylic acid. The reactive polymer-supporting porous film has a separator and electrodes sufficiently bonded to each other and with low inner resistance suitably used for production of battery excellent in high rate performance. Further, provided is a method of producing a battery which comprises placing the electrode/reactive polymer-supporting porous film layered body in a battery container; introducing an electrolytic solution containing a cationic polymerization catalyst into the battery container thereby bonding the porous film and electrodes together.
    Type: Grant
    Filed: June 3, 2011
    Date of Patent: October 2, 2012
    Assignees: Nitto Denko Corporation, Sunstar Giken Kabushiki Kaisha
    Inventors: Yoshihiro Uetani, Keisuke Kii, Shigeru Fujita, Satoshi Nishikawa, Tatsuya Okuno
  • Publication number: 20120244349
    Abstract: Provided is a photocurable pressure-sensitive adhesive composition which does not cause oozing under ordinary temperature and pressure conditions and exhibits sufficient initial tack via drying and crosslinking. The photocurable pressure-sensitive adhesive composition is easily curable by light irradiation and can form a curable pressure-sensitive adhesive layer having high peel resistance. Also provided are a photocurable pressure-sensitive adhesive layer and a photocurable pressure-sensitive adhesive sheet. A photocurable pressure-sensitive adhesive composition is prepared which comprises a graft polymer obtained by grafting a chain that contains a monomer bearing a cyclic ether group onto a (meth)acrylic polymer that contains 0.2 to 10% by weight of hydroxyalkyl(meth)acrylamide monomer units, and a cationic photopolymerization initiator. A photocurable pressure-sensitive adhesive layer using such composition and a photocurable pressure-sensitive adhesive sheet are also prepared.
    Type: Application
    Filed: December 1, 2010
    Publication date: September 27, 2012
    Inventors: Shigeru Fujita, Yutaka Moroishi, Fumiko Nakano, Tetsuo Inoue
  • Patent number: 8238600
    Abstract: An electronic watermark embedding apparatus and an electronic watermark embedding method can severally deal with both of the resistance property of an electronic watermark and the prevention of image quality deterioration. Electronic watermark information of a high importance level is embedded in a component having a strong resistance property, and electronic watermark information of a low importance level is embedded in a component exerting little influence on an image quality. As a result, the electronic watermark information to be embedded in the component having a strong resistance property is limited to that of a high importance level. Moreover, the image quality deterioration can be suppressed in comparison with the case of embedding all pieces of information, and the electronic watermark information of low importance level is embedded in the component having a weak resistance property but exerting little influence on an image quality.
    Type: Grant
    Filed: September 18, 2008
    Date of Patent: August 7, 2012
    Assignee: Canon Kabushiki Kaisha
    Inventors: Takeshi Kuga, Shigeru Fujita, Hiroki Horikoshi, Akira Ichimura, Hideki Takemura, Hiroyuki Hosogoshi
  • Patent number: 8164793
    Abstract: In a multipass printing that performs a plurality of printing scans over a unit area of a print medium by using a leading head and a follower head, the multivalued image data for the leading head is distributed according to the print volume information for up to the preceding printing scan. Then, the multivalued image data for the leading head is subjected to the grayscale level reduction operation to generate binary data. Based on the binary data, the print volume information is updated, after which the multivalued image data for the follower head is distributed according to the print volume information. This causes a plurality of printing scans or a plurality of print heads, that print the same unit area, to have a correlation among them, with the result that dots on a plurality of planes when overlapped have an excellent scattering characteristic.
    Type: Grant
    Filed: July 29, 2009
    Date of Patent: April 24, 2012
    Assignee: Canon Kabushiki Kaisha
    Inventors: Shigeru Fujita, Hiroki Horikoshi, Yasunori Fujimoto, Shinichi Miyazaki, Akira Ichimura, Hironori Nakamura
  • Publication number: 20120094119
    Abstract: A photocurable pressure-sensitive adhesive composition, a photocurable pressure-sensitive adhesive layer, and a photocurable pressure-sensitive adhesive sheet including a support and such a photocurable pressure-sensitive adhesive layer formed on at least one side of the support are provided. The photocurable pressure-sensitive adhesive composition can form an adhesive layer that has sufficient initial adhesive strength through the process of drying and cross-linking without having any adhesive protruding at normal temperatures and pressures, hardens easily with light irradiation, and has a high peeling resistance. The photocurable adhesive composition contains a graft polymer that graft-polymerizes a monomer containing a cyclic ether group to a (meth)acrylic polymer and a cationic photopolymerization initiator. The photocurable adhesive layer and the photocurable adhesive sheet are prepared by using said photocurable adhesive composition.
    Type: Application
    Filed: April 28, 2010
    Publication date: April 19, 2012
    Applicant: NITTO DENKO CORPORATION
    Inventors: Shigeru Fujita, Yutaka Moroishi, Fumiko Nakano
  • Patent number: 8153712
    Abstract: A crosslinkable rubber composition comprising 0.2 to 10 parts by weight of an aromatic secondary amine-based anti-aging agent and 0.5 to 20 parts by weight of a polyamine-based crosslinking agent with respect to 100 parts by weight of a nitrile rubber including an ?,?-ethylenically unsaturated nitrile unit and an ?,?-ethylenically unsaturated dicarboxylic acid monoester unit, and with iodine value of 120 or less. The present invention can provide a crosslinkable rubber composition, providable of a cross-linked rubber excellent in a variety of properties such as mechanical strength and small in compression set, and a cross-linked rubber obtained by cross-linking the rubber composition.
    Type: Grant
    Filed: December 21, 2006
    Date of Patent: April 10, 2012
    Assignee: Zeon Corporation
    Inventors: Hiroyasu Nagamori, Shigeru Fujita, Kiyonori Umetsu, Akira Tsukada