Patents by Inventor Tomoyuki Sato

Tomoyuki Sato 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: 20150137457
    Abstract: A piston ring which is provided with a carbon-based coating which has a low friction property and wear resistance, that is, a piston ring which has a carbon-based coating formed over its sliding surface, in which piston ring, the coating is a multilayer coating comprised of two types of layers having different hardnesses laminated in at least two layers, a hardness difference between the two types of layers is 500 to 1700 HV, a high hardness layer has the same or greater thickness than a low hardness layer, and the coating as a whole has a thickness of 5.0 ?m or more. The high hardness layer has a thickness of 5 to 90 nm. The surface on which the coating is formed has a base material roughness of 1.0 ?mRz or less.
    Type: Application
    Filed: January 30, 2015
    Publication date: May 21, 2015
    Inventors: Takatsugu IWASHITA, Tomoyuki SATO
  • Patent number: 8911924
    Abstract: A toner including base particles each containing a crystalline polyester and a non-crystalline polyester, wherein the toner has a glass transition temperature of 45° C. or higher where the glass transition temperature is determined from a DSC curve of the toner obtained in the first elevation of temperature thereof, and wherein the toner has a temperature width of 8° C. or lower where the temperature width is a temperature width at ? the height of an endothermic peak attributed to the crystalline polyester in the DSC curve.
    Type: Grant
    Filed: October 13, 2011
    Date of Patent: December 16, 2014
    Assignee: Ricoh Company, Ltd.
    Inventors: Tomoyuki Sato, Naohiro Watanabe, Tsuyoshi Sugimoto, Shinya Hanatani, Mamoru Hozumi
  • Patent number: 8846201
    Abstract: A composite plated product has a metal material and a plating film of compounded carbon nanomaterials and microparticles coated on the metal material in a nickel plating bath in which carbon nanomaterials are mixed together with microparticles having an average grain size of 2.5 ?m or less.
    Type: Grant
    Filed: March 5, 2009
    Date of Patent: September 30, 2014
    Assignee: Nissei Industrial Plastic Co., Ltd.
    Inventors: Tomoyuki Sato, Hozumi Yoda
  • Publication number: 20140102905
    Abstract: In a method of plating aluminum based articles, an iron-based composite plating bath formed by admixing a nano-sized, particle-deposited carbon material into an iron plating bath at a ratio of 1.0 g per liter is provided. Using the iron-based composite plating bath, an iron-based composite plating layer containing the nano-sized, particle-deposited carbon material is plated on an aluminum-based base material.
    Type: Application
    Filed: December 13, 2013
    Publication date: April 17, 2014
    Applicants: ART METAL MFG.CO., LTD., NISSEI PLASTIC INDUSTRIAL CO., LTD.
    Inventors: Tomoyuki SATO, Masashi SUGANUMA, Tomonori KARASAWA, Shoji KANAI, Akira MATSUMOTO
  • Publication number: 20140091335
    Abstract: To provide a light emitting device that can maintain a desired light emission even when the tube is bent. The light emitting device of the present invention includes: a bendable tube extending in a first direction; a flexible board extending in the first direction and housed in the tube; and a plurality of light emitting elements mounted on the flexible board, wherein the flexible board comprises a plurality of protrusions aligned in the first direction on both sides in a second direction perpendicular to the first direction, on which the light emitting elements are mounted, and the plurality of protrusions are in contact with an inner wall of the tube such that the inner wall clamps the flexible board in a bent position.
    Type: Application
    Filed: October 2, 2013
    Publication date: April 3, 2014
    Applicant: NICHIA CORPORATION
    Inventors: Yuji Satake, Tomoyuki Sato
  • Patent number: 8673445
    Abstract: A composite-plated article has a metallic material and a plating film coated on the metallic material in a nickel-plating bath containing carbon nanocomposite fibers. Each of the carbon nanocomposite fibers is formed of a carbon nanofiber core and microparticles that react with carbon to form a compound bonded to a surface of the carbon nanofiber core.
    Type: Grant
    Filed: July 17, 2009
    Date of Patent: March 18, 2014
    Assignee: Nissei Plastic Industrial Co. Ltd.
    Inventor: Tomoyuki Sato
  • Publication number: 20140001673
    Abstract: An apparatus for producing a two-color molded article, including a pair of primary forming molds, which constitute a primary molding unit for molding a primary molded body by a primary injection molding operation using a first injection unit, are opened while retaining the primary molded body by one of the pair of primary forming molds, and a second injection unit, which constitutes a secondary molding unit for molding a secondary molded body by secondary injection molding operation, is assembled in one of a pair of secondary forming molds with at least part of the second injection unit being accommodated in the one of the pair of secondary forming molds. A secondary molding cavity is formed between the pair of secondary forming molds so as to accommodate at least a part of the primary molded body retained by the above-described one of the pair of primary forming molds.
    Type: Application
    Filed: June 6, 2013
    Publication date: January 2, 2014
    Applicant: Kojima Industries Corporation
    Inventors: Daisuke TAKAHASHI, Tomoyuki SATO
  • Publication number: 20130209931
    Abstract: A toner including base particles each containing a crystalline polyester and a non-crystalline polyester, wherein the toner has a glass transition temperature of 45° C. or higher where the glass transition temperature is determined from a DSC curve of the toner obtained in the first elevation of temperature thereof, and wherein the toner has a temperature width of 8° C. or lower where the temperature width is a temperature width at ? the height of an endothermic peak attributed to the crystalline polyester in the DSC curve.
    Type: Application
    Filed: October 13, 2011
    Publication date: August 15, 2013
    Inventors: Tomoyuki Sato, Naohiro Watanabe, Tsuyoshi Sugimoto, Shinya Hanatani, Mamoru Hozumi
  • Publication number: 20130177846
    Abstract: To provide a toner, containing: a binder resin; a colorant; a releasing agent; and a crystalline polyester resin, wherein the toner satisfies the following formulae (1) to (3): 40° C.?X?55° C. Formula (1) 85° C.?Y?92° C. Formula (2) 35° C.?Y?X?50° C. Formula (3) where X is an onset temperature and Y is an endset temperature of an endothermic peak on a differential scanning calorimetry (DSC) curve of the toner as measured by a differential scanning calorimeter (DSC).
    Type: Application
    Filed: September 15, 2011
    Publication date: July 11, 2013
    Inventors: Naohiro Watanabe, Tsuyoshi Sugimoto, Mamoru Hozumi, Tomoyuki Sato, Shinya Hanatani
  • Publication number: 20120248711
    Abstract: A piston ring which is provided with a carbon-based coating which has a low friction property and wear resistance, that is, a piston ring which has a carbon-based coating formed over its sliding surface, in which piston ring, the coating is a multilayer coating comprised of two types of layers having different hardnesses laminated in at least two layers, a hardness difference between the two types of layers is 500 to 1700 HV, a high hardness layer has the same or greater thickness than a low hardness layer, and the coating as a whole has a thickness of 5.0 ?m or more. The high hardness layer has a thickness of 5 to 90 nm. The surface on which the coating is formed has a base material roughness of 1.0 ?mRz or less.
    Type: Application
    Filed: March 26, 2012
    Publication date: October 4, 2012
    Applicant: TPR CO., LTD.
    Inventors: Takatsugu IWASHITA, Tomoyuki SATO
  • Patent number: 8110288
    Abstract: A carbon nanocomposite material comprises a carbon nanomaterial and Si powder having an average particle diameter of 10 ?m or less vacuum-vapor deposited on a surface of the carbon nanomaterial as a film of SiC. The film of SiC has an average thickness in the range of 10 to 50 nm.
    Type: Grant
    Filed: July 8, 2008
    Date of Patent: February 7, 2012
    Assignee: Nissei Plastic Industrial Co., Ltd.
    Inventors: Keita Arai, Tomoyuki Sato
  • Patent number: 8012275
    Abstract: In a method for manufacturing a composite-metal-forming material, heating a metal material a Mg alloy or an Al alloy is heated to a temperature in a region where a solid and a liquid are both present to thereby yield a semi-molten metal material in a semi-molten state. An additive material is introduced to the semi-molten metal material and kneading is performed to obtain a composite metal material. The composite metal material is heated to a solution temperature of the metal material and a solution treatment is performed to thereby yield a composite-metal-forming material.
    Type: Grant
    Filed: September 18, 2008
    Date of Patent: September 6, 2011
    Assignee: Nissei Plastic Industrial Co., Ltd
    Inventors: Taku Kawano, Tomoyuki Sato, Atsushi Kato, Masashi Suganuma, Keita Arai, Daisuke Shiba
  • Patent number: 7940805
    Abstract: There is provided a receiving device including: a receiving unit that receives a packet stream; an oscillator; a measuring unit that performs a measuring operation; an acquiring unit that reads the newest time stamp read from the packet stream received by the receiving unit and the newest measurement value measured by the measuring unit with a predetermined period, from a point of time when the packet stream starts to be received; a calculating unit that calculates an accumulation value of the time stamps and the measurement values acquired by the acquiring unit; a comparing unit that compares a difference between the accumulation value of the time stamps and the accumulation value of the measurement values calculated by the calculating unit, and a value corresponding to a network jitter; and a frequency control unit that controls the oscillation frequency of the oscillator based on the comparison result by the comparing unit.
    Type: Grant
    Filed: March 16, 2009
    Date of Patent: May 10, 2011
    Assignee: Sony Corporation
    Inventors: Takahiro Ichikawa, Koji Obata, Tomoyuki Sato, Yoshikatsu Niwa, Junichi Otani, Tomoaki Takemura, Shinya Masunaga
  • Patent number: 7906210
    Abstract: A composite plating layer contains carbon nanofibers. A composite plating solution contains a Watts bath composed mainly of nickel sulfate and nickel chloride, a brightening agent, a surface active agent and carbon nanofibers. Polyacrylic acid is used as the surface active agent.
    Type: Grant
    Filed: October 25, 2005
    Date of Patent: March 15, 2011
    Assignees: Nissei Plastic Industrial Co., Ltd., Shinshu University
    Inventors: Tomoyuki Sato, Susumu Arai
  • Publication number: 20110014493
    Abstract: A composite-plated article in which carbon nanofibers are used, and an adequate degree of strength is obtained thereby. Carbon nanofibers having microparticles bonded thereto are used. On reacting with carbon and forming a compound, the microparticles will be securely bonded to the carbon nanofibers, and a high-strength composite-plated article is obtained.
    Type: Application
    Filed: July 17, 2009
    Publication date: January 20, 2011
    Inventor: Tomoyuki Sato
  • Patent number: 7868451
    Abstract: A resin sealing semiconductor device (2) having a structure in which a portion to be sealed of components including a plurality of chip mounting board, a semiconductor chip mounted to a front surface of each chip mounting board, and a plurality of leads provided correspondingly to each chip mounting board is embedded in resin molded portions (41 and 42) molded into a generally plate shape, and outer lead portions of the plurality of leads (16 and 17) are led out in line from a side surface at one end in a width direction of the resin molded portions, and back surfaces as exposed surfaces (11u1 to 11w1 and 12u1 to 12w1) of each chip mounting board are placed on one surfaces of the resin molded portions (41 and 42), wherein a plurality of positioning protrusions (50) are provided on one surfaces of the resin molded portions (41 and 42), and a protrusion height of the positioning protrusions is set so that a gap to be filled with insulating resin is formed between each part of the exposed surface of each chip mo
    Type: Grant
    Filed: May 30, 2006
    Date of Patent: January 11, 2011
    Assignee: Kokusan Denki Co. Ltd.
    Inventors: Shuichi Muramatsu, Hidetoshi Suzuki, Tomoyuki Sato, Kazuo Hara
  • Publication number: 20100255339
    Abstract: A technique for using an iron plating for coating an aluminum product that results in adequate durability. An aluminum piston (10) used as a plated aluminum product is covered by an iron-based composite plating layer (11). The iron-based composite plating layer (11) contains a carbon nanomaterial, which is applied to the aluminum-based base material using a iron-based composite plating bath formed by mixing a carbon nanomaterial into an iron plating bath.
    Type: Application
    Filed: September 2, 2009
    Publication date: October 7, 2010
    Inventors: Tomoyuki Sato, Masashi Suganuma, Tomonori Karasawa, Shoji Kanai, Akira Matsumoto
  • Publication number: 20100227154
    Abstract: A composite plated product in which a metal material is coated with a plating film in a nickel bath in which carbon nanomaterials and hard microparticles are mixed. The carbon nanomaterials and hard microparticles are compounded with nickel or a nickel alloy in the plating film.
    Type: Application
    Filed: March 5, 2009
    Publication date: September 9, 2010
    Inventors: Tomoyuki Sato, Hozumi Yoda
  • Patent number: 7741708
    Abstract: A semiconductor device having a plurality of semiconductor chips mounted on a lead frame (10) and required portions covered with seal portions in which: the plurality of semiconductor chips are divided into a first group of semiconductor chips (Dx to Dz) and a second group of semiconductor chips (Du to Dw and Thx to Thz); both groups of semiconductor chips are mounted on the lead frame (10) at a distance from each other; the seal portions are comprised of first and second resin-seal portions (41 and 42) which cover the first and second groups of semiconductor chips, respectively, along with required portions of the lead frame; both resin-seal portions are mechanically coupled with each other by coupling portions; and a group of read terminals respectively connected to circuits within the first resin-seal portion and circuits within the second resin-seal portion are led out through a gap between the first resin-seal portion (41) and the second resin-seal portion (42).
    Type: Grant
    Filed: December 9, 2005
    Date of Patent: June 22, 2010
    Assignee: Kokusan Denki Co., Ltd.
    Inventors: Shuichi Muramatsu, Hidetoshi Suzuki, Tomoyuki Sato, Kazuo Hara, Motoki Yamazaki, Masaki Asari, Hirofumi Yamaguchi
  • Patent number: 7730884
    Abstract: A diving apparatus includes a support structure (18) that is engageable with a diver's head, the support structure (18) defining a lens opening (262) and an equalization opening (104). A lens (26) is mounted on the support structure (18) to close the lens opening (262) so that the support structure (18) and the lens (26) define a breathing space (30) from which the diver can be supplied with air. A sealing arrangement is positioned on the support structure (18) sealingly to engage the diver's face so that the breathing space (30) is substantially airtight. An equalization assembly (106) is mounted on the support structure (18) to close the equalization opening (104). The equalization assembly (106) includes an access means to permit the diver to gain access to his or her nose so that the diver can carry out an equalization procedure. A gas supply arrangement is in fluid communication with the breathing space (30).
    Type: Grant
    Filed: September 19, 2003
    Date of Patent: June 8, 2010
    Inventors: Tomoyuki Sato, Takeshi Kiyama