Patents by Inventor Yoshiki Sakaguchi

Yoshiki Sakaguchi 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: 10929020
    Abstract: An information processing device includes a control unit functioning as a receiving unit, a processing unit, and a storage controller, a storage, and a communication unit. The storage controller stores data in the storage when the receiving unit receives a predetermined storage instruction, transmits the data to a predetermined storage device among a plurality of storage devices, and stores the transmitted data in the predetermined storage device.
    Type: Grant
    Filed: February 23, 2018
    Date of Patent: February 23, 2021
    Assignee: KYOCERA Document Solutions Inc.
    Inventors: Shoichi Sakaguchi, Yoshiyuki Fujiwara, Yoshihisa Tanaka, Yoshiki Yoshioka, Tetsuya Nishino, Seiji Onishi
  • Publication number: 20200208103
    Abstract: The present invention provides a method for maintaining a continuous epithelial structure of a retinal tissue including culturing the retinal tissue in a medium comprising a methyl group donor or a substrate of the methyl group donor at a concentration at which cell differentiation of a neural retinal progenitor cell is suppressed, and a neurite extension inhibitor at a concentration at which neurite extension is suppressed.
    Type: Application
    Filed: July 20, 2018
    Publication date: July 2, 2020
    Applicants: RIKEN, SUMITOMO DAINIPPON PHARMA CO., LTD., SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventors: Hideya SAKAGUCHI, Yoshiki SASAI (deceased), Mototsugu EIRAKU, Daiki NUKAYA, Atsushi KUWAHARA
  • Patent number: 10603929
    Abstract: A drying device includes heaters disposed along the direction of conveyance of a recording medium to which liquid is applied, the heaters being configured to heat the recording medium, wherein the recording medium is conveyed in contact with the heaters on a conveyance path including a first path on which the recording medium is conveyed in contact with the heaters for the second time and a second path on which the recording medium is conveyed in contact with the heaters for the second time, wherein a dried film of the liquid formed by the following method has a Martens hardness of 30 N/mm2 or greater at 120 degrees C.: method: the liquid is applied to a glass plate to form a film and the film is dried with a reduced pressure at 100 degrees C. for three hours to obtain the dried film having an average thickness of 5 ?m.
    Type: Grant
    Filed: September 13, 2018
    Date of Patent: March 31, 2020
    Assignee: Ricoh Company, Ltd.
    Inventors: Ryota Iwasaki, Hiromi Sakaguchi, Yoshiki Yanagawa, Kaori Toyama, Satoshi Takahashi, Toshihiro Yoshinuma, Ken Onodera, Sho Sawahata, Junji Nakai, Yasuhisa Katoh
  • Patent number: 10601921
    Abstract: An information processing device includes a control unit functioning as a receiving unit, a processing unit, and a storage controller, a storage, and a communication unit. Each of a plurality of sheets of data is associated with each predetermined storage device among a plurality of storage devices, and information indicating a correspondence between the plurality of sheets and the predetermined storage devices is stored in the storage in advance. When the receiving unit receives a predetermined storage instruction, the storage controller performs a process of storing data in the storage and causing the communication unit to transmit data indicating the plurality of sheets to storage devices associated with the sheets with respect to each of the plurality of sheets, and stores the transmitted data in the storage devices.
    Type: Grant
    Filed: February 15, 2018
    Date of Patent: March 24, 2020
    Assignee: KYOCERA Document Solutions, Inc.
    Inventors: Shoichi Sakaguchi, Yoshiyuki Fujiwara, Yoshihisa Tanaka, Yoshiki Yoshioka, Tetsuya Nishino, Seiji Onishi
  • Publication number: 20140212756
    Abstract: A lithium iron phosphate cathode material has high electron conductivity and high lithium ion conductivity, in other words, has excellent performance as an electrode material, which is provided by a carbon coating formed using a small amount of a carbon material. A method for producing the lithium iron phosphate cathode material is also provided. In particular, a lithium iron phosphate cathode material has primary particles of lithium iron phosphate coated with a conductive carbon cover layer. The conductive carbon cover layer is characterized by having thick layer portions with a thickness of 2 nm or greater and thin layer portions with a thickness of smaller than 2 nm.
    Type: Application
    Filed: March 7, 2012
    Publication date: July 31, 2014
    Applicant: MITSUI ENGINEERING & SHIPBUILDING CO., LTD.
    Inventors: Yoshiki Sakaguchi, Yoshitaka Hamanaka
  • Patent number: 8197966
    Abstract: A negative electrode 10 for a nonaqueous secondary battery has an active material layer 12 containing active material particles 12a. The particles 12a are coated at least partially with a metallic material 13 having low capability of lithium compound formation. The active material layer 12 has voids located between the metallic material-coated particles 12a with a void fraction of 15% to 45%. The metallic material 13 on the surface of the particles is preferably present throughout the thickness of the active material layer. The active material particles 12a are preferably of a silicon-based material. The active material layer 12 preferably contains 1% to 3% by weight of an electroconductive carbon material based on the weight of the active material particles 12a.
    Type: Grant
    Filed: April 18, 2007
    Date of Patent: June 12, 2012
    Assignee: Mitsui Mining & Smelting Co., Ltd
    Inventors: Akihiro Modeki, Tomoyoshi Matsushima, Masahiro Hyakutake, Kiyotaka Yasuda, Kayoko Shinzawa, Yoshiki Sakaguchi
  • Patent number: 8141739
    Abstract: [Object] A safe hydrogen storage tank in a highly reliable form where it is difficult for fatigue failure to occur is provided as a hydrogen storage tank where a cartridge is filled with a hydrogen occluding substance and contained within an integrally molded liner made of a metal.
    Type: Grant
    Filed: June 15, 2007
    Date of Patent: March 27, 2012
    Assignees: Samtech Corporation, Japan Metals & Chemicals Co., Ltd.
    Inventors: Yoshiki Sakaguchi, Hideaki Nishiwaki, Naoki Sakaguchi, Takeshi Yamamoto, Shigeru Tsunokake, Tatsuya Fuura, Shogo Watanabe, Yasumasa Maeda
  • Patent number: 7838154
    Abstract: A negative electrode 10 for a nonaqueous secondary battery, has an active material layer 2 containing active material particles 2a. The active material layer 2 has a metallic material 4 deposited among the particles by electroplating. The negative electrode 10 has a large number of holes 5 open on at least one side thereof and extending through the thickness of the active material layer. The negative electrode 10 further has a pair of current collecting layers 3a and 3b adapted to be brought into contact with an electrolyte. The active material layer 2 is between the current collecting layers 3a and 3b. The holes 5 open on the negative electrode 10 preferably have an opening area ratio of 0.3% to 30%. At least one of the pair of the current collecting layers 3a and 3b preferably has a thickness of 0.3 to 10 ?m.
    Type: Grant
    Filed: July 6, 2005
    Date of Patent: November 23, 2010
    Assignee: Mitsui Mining & Smelting Co., Ltd.
    Inventors: Tomoyoshi Matsushima, Hitohiko Honda, Yoshiki Sakaguchi, Masahiro Hyakutake, Kiyotaka Yasuda
  • Publication number: 20100136437
    Abstract: A nonaqueous secondary battery having a negative electrode containing a silicon active material and a nonaqueous solvent containing a fluorine-containing solvent. The active material layer has a fluorine content of 5 to 30 wt % based on the silicon content after at least 100 charge/discharge cycles at a rate of 50% or more of the battery's capacity. The battery is suitably produced by a method including applying a slurry containing silicon active material particles to a current collector, electroplating the resulting coating layer using a plating bath at a pH higher than 7 to coat at least part of the surface of the particles with copper, acid washing the coating layer to make a negative electrode, assembling the negative electrode together with a positive electrode, a separator, and a nonaqueous electrolyte containing a fluorine-containing solvent into a nonaqueous secondary battery, and subjecting the battery to a first charge operation at a low rate of 0.005 to 0.03 C.
    Type: Application
    Filed: October 11, 2007
    Publication date: June 3, 2010
    Applicant: MITSUI MINING & SMELTING CO., LTD.
    Inventors: Takuma Nishida, Akihiro Modeki, Yoshiki Sakaguchi
  • Patent number: 7682739
    Abstract: A negative electrode 1 for nonaqueous secondary batteries characterized by having an active material layer 5 and a metallic lithium layer 3 both between a pair of current collecting surface layers 4. The negative electrode 1 has two negative electrode precursors 2 each composed of the current collecting surface layer 4 and the active material layer 5 on one side of the surface layer 4. The two negative electrode precursors 2 are united with their active material layers 5 facing each other and with the metallic lithium layer 3 sandwiched therebetween. A metallic material having low capability of forming a lithium compound penetrates through the whole thickness of the active material layer 5.
    Type: Grant
    Filed: May 12, 2005
    Date of Patent: March 23, 2010
    Assignee: Mitsui Mining & Smelting Co., Ltd.
    Inventors: Hitohiko Honda, Yoshiki Sakaguchi, Kiyotaka Yasuda
  • Publication number: 20090202913
    Abstract: A negative electrode 10 for a nonaqueous secondary battery includes an active material layer 12 containing active material particles 12a. The active material particles 12a are coated at least partially with a metallic material 13 having low capability of forming a lithium compound. The active material layer 12 has voids formed between the metallic material-coated active material particles 12a. The metallic material 13 has an average crystallite size of 0.01 to 1 ?m and covers 5% to 95% of the surface of the particles 12a. The metallic material covering the surface of the particles preferably has a thickness of 0.05 to 2 ?m on average.
    Type: Application
    Filed: April 10, 2007
    Publication date: August 13, 2009
    Applicant: MITSUI MINING & SMELTING CO.,LTD.
    Inventors: Yoshiki Sakaguchi, Hideaki Matsushima
  • Publication number: 20090202915
    Abstract: A negative electrode (10) for use in a non-aqueous electrolyte secondary battery comprises an active material layer (12) containing a particle (12a) of an active material. At least a part of the surface of the particle (12a) is coated with a metal material (13) having a poor ability of forming a lithium compound. A void is formed between the particles (12a) that are coated with the metal material (13). The active material layer has a void ratio of 15 to 45%. Preferably, the metal material (13) is present over the entire area of such a part of the surface of the particle that extends in the thickness-wise direction of the active material layer. Also preferably, the particle (12a) of the active material is composed of a silicone material, and the active material layer (12) contains a conductive carbon material in an amount of 1 to 3% by weight relative to the weight amount of the particle (12a) of the active material.
    Type: Application
    Filed: April 18, 2007
    Publication date: August 13, 2009
    Inventors: Akihiro Modeki, Tomoyoshi Matsushima, Masahiro Hyakutake, Kiyotaka Yasuda, Kayoko Shinzawa, Yoshiki Sakaguchi
  • Publication number: 20090191459
    Abstract: An electrode (10) characterized by an output terminal (9) being led out from the surface of a part where an active substance layer (3) exists when viewed from the thickness direction of the electrode. Active substance contained in the active substance layer (3) preferably comprises a material having a low electron conductivity. The electrode (10) preferably comprises a pair of current collecting surface layers (4) having a surface touching electrolyte, and at least one active substance layer (3) containing particles (2) of an active substance having a high lithium compound forming power and interposed between the surface layers (4). In the active substance layer (3), a metal material having a low lithium compound forming power permeates between the particles of active substance and the opposite sides are conducting electrically. The entire electrode preferably has a current collecting function as a whole.
    Type: Application
    Filed: November 9, 2004
    Publication date: July 30, 2009
    Applicant: Misui Mining & Smelting Co., Ltd.
    Inventors: Yoshiki Sakaguchi, Kiyotaka Yasuda
  • Publication number: 20090070988
    Abstract: A process of producing a nonaqueous secondary battery comprising the steps of disposing a separator between a member containing a silicon-based material and a positive electrode, together with interposing a metallic lithium layer between the separator and the member to obtain an assembly, and aging the resulting assembly for a prescribed period of time to alloy lithium with the silicon-based material. Lithium alloying is preferably performed to a degree such that the amount of lithium in the silicon-based material is 5% to 50% based on the theoretical initial charge capacity of silicon. When the positive electrode has a lithium-containing active material for positive electrode, lithium alloying is preferably performed to a degree satisfying formula (1): 4.
    Type: Application
    Filed: December 8, 2005
    Publication date: March 19, 2009
    Inventors: Hitohiko Honda, Kiyotaka Yasuda, Yoshiki Sakaguchi
  • Patent number: 7455931
    Abstract: An anode for a nonaqueous secondary battery comprising a current collector having formed thereon a first covering layer containing tin, a tin alloy, aluminum or an aluminum alloy and a second covering layer containing a metal having low capability of forming a lithium compound in that order. The anode may have an additional first covering layer formed on the second covering layer. A covering layer containing a copper etc. may be formed as an uppermost layer. Each layer can be formed by heat treating to get desired property. As heat treatment can be done in a short time, it has a great cost merit.
    Type: Grant
    Filed: April 21, 2003
    Date of Patent: November 25, 2008
    Assignee: Mitsui Mining & Smelting Company, Ltd.
    Inventors: Kiyotaka Yasuda, Yoshiki Sakaguchi, Kazuko Taniguchi, Makoto Dobashi
  • Publication number: 20080142523
    Abstract: [Object] A safe hydrogen storage tank in a highly reliable form where it is difficult for fatigue failure to occur is provided as a hydrogen storage tank where a cartridge is filled with a hydrogen occluding substance and contained within an integrally molded liner made of a metal.
    Type: Application
    Filed: June 15, 2007
    Publication date: June 19, 2008
    Inventors: Yoshiki Sakaguchi, Hideaki Nishiwaki, Naoki Sakaguchi, Takeshi Yamamoto, Shigeru Tsunokake, Tatsuya Fuura, Shogo Watanabe, Yasumasa Maeda
  • Patent number: 7137526
    Abstract: A cylindrical reinforcing collar is fitted onto a cylindrical gas discharge section of a tank body and then engaged integrally on the exterior of the tank body between the cylindrical gas discharge section and the dome section by shrink fitting. This provides, easily and inexpensively, a high-pressure tank capable of withstanding high pressures of 35 to 75 MPa while keeping its lightness in weight.
    Type: Grant
    Filed: June 23, 2003
    Date of Patent: November 21, 2006
    Assignees: Samtech Corporation, Samtech International, Inc., Hypercom Engineering, Inc.
    Inventors: Teppei Sakaguchi, Yoshiki Sakaguchi, Shaun C. Hogan
  • Publication number: 20060147802
    Abstract: A negative electrode for nonaqueous secondary batteries is disclosed. The negative electrode has a pair of current collecting surface layers of which the surfaces are adapted to be brought into contact with an electrolyte and at least one active material layer interposed between the surface layers. The active material layer contains particles of an active material having high capability of forming a lithium compound. The material constituting the surfaces is preferably present over the whole thickness of the active material layer to electrically connect the surfaces so that the electrode exhibits a current collecting function as a whole. The surface layers each preferably have a thickness of 0.3 to 10 ?m.
    Type: Application
    Filed: January 5, 2005
    Publication date: July 6, 2006
    Inventors: Kiyotaka Yasuda, Yoshiki Sakaguchi, Shinichi Musha, Makoto Dobashi, Akihiro Modeki, Tomoyoshi Matsushima, Hitohiko Honda, Takeo Taguchi
  • Publication number: 20060115735
    Abstract: An anode for nonaqueous secondary batteries is disclosed. The anode has a pair of current collecting surface layers of which the surfaces are adapted to be brought into contact with an electrolytic solution and at least one active material layer interposed between the surface layers. The active material layer contains particles of an active material having high capability of forming a lithium compound. The material constituting the surfaces is preferably present over the whole thickness of the active material layer to electrically connect the surfaces so that the electrode exhibits a current collecting function as a whole. The surface layers each preferably have a thickness of 0.3 to 10 ?m.
    Type: Application
    Filed: December 17, 2003
    Publication date: June 1, 2006
    Inventors: Kiyotaka Yasuda, Yoshiki Sakaguchi, Shinichi Musha, Makoto Dobashi, Akihiro Modeki, Tomoyoshi Matsushima, Hitohiko Honda, Takeo Taguchi
  • Publication number: 20060051675
    Abstract: Disclosed is a negative electrode for a nonaqueous secondary battery included of a current collector and an active material structure containing an electro-conductive material having low capability of forming a lithium compound on at least one side of the current collector, the active material structure containing 5 to 80% by weight of active material particles containing a material having high capability of forming a lithium compound. The active material structure preferably has an active material layer containing the active material particles and a surface coating layer formed on the active material layer.
    Type: Application
    Filed: November 25, 2003
    Publication date: March 9, 2006
    Applicant: MITSUI MINING & SMELTING CO., LTD.
    Inventors: Shinichi Musha, Hitohiko Honda, Yoshiki Sakaguchi, Kiyotaka Yasuda, Akihiro Modeki, Tomoyoshi Matsushima, Takeo Taguchi, Kazuko Taniguchi, Makoto Dobashi