Patents by Inventor Hisashi Nakamura

Hisashi Nakamura 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: 10927270
    Abstract: An oil-based ink composition for a writing instrument, comprising a dye, an organic solvent and a phenolic compound of the following general formula (1): wherein R is each independently hydrogen or an alkyl group having 1 to 5 carbon atoms, R1 is any of an alkyl group having 1 to 5 carbon atoms, a halogenated alkyl group having 1 to 5 carbon atoms, a phenyl group, a hydroxyphenyl group, and an alkyl group having 1 to 5 carbon atoms substituted by a hydroxyphenyl group, and R2 is any of a halogenated alkyl group having 1 to 5 carbon atoms, a phenyl group, a hydroxyphenyl group, and an alkyl group having 1 to 5 carbon atoms substituted by a hydroxyphenyl group. The oil-based ink composition for a writing instrument can form handwriting having excellent water resistance in which no bleeding occurs on written surfaces of various materials with a dye retaining color development.
    Type: Grant
    Filed: May 25, 2016
    Date of Patent: February 23, 2021
    Assignee: KABUSHIKI KAISHA PILOT CORPORATION
    Inventor: Hisashi Nakamura
  • Patent number: 10520456
    Abstract: Provided is a combustion experiment device, which includes a reaction tube into which a sample fluid flows and to which a temperature gradient in which a temperature rises toward a downstream side is imparted, and a burner part that is configured to flow a combustible gas along and around the reaction tube from the downstream side to an upstream side of the reaction tube and to maintain a flame surrounding the reaction tube from the outside in a radial direction of the reaction tube.
    Type: Grant
    Filed: November 9, 2016
    Date of Patent: December 31, 2019
    Assignees: TOHOKU UNIVERSITY, IHI CORPORATION
    Inventors: Takuya Tezuka, Hisashi Nakamura, Kaoru Maruta, Soichiro Kato, Shintaro Ito
  • Publication number: 20180127609
    Abstract: An oil-based ink composition for a writing instrument, comprising a dye, an organic solvent and a phenolic compound of the following general formula (1): wherein R is each independently hydrogen or an alkyl group having 1 to 5 carbon atoms, R1 is any of an alkyl group having 1 to 5 carbon atoms, a halogenated alkyl group having 1 to 5 carbon atoms, a phenyl group, a hydroxyphenyl group, and an alkyl group having 1 to 5 carbon atoms substituted by a hydroxyphenyl group, and R2 is any of a halogenated alkyl group having 1 to 5 carbon atoms, a phenyl group, a hydroxyphenyl group, and an alkyl group having 1 to 5 carbon atoms substituted by a hydroxyphenyl group. The oil-based ink composition for a writing instrument can form handwriting having excellent water resistance in which no bleeding occurs on written surfaces of various materials with a dye retaining color development.
    Type: Application
    Filed: May 25, 2016
    Publication date: May 10, 2018
    Applicant: KABUSHIKI KAISHA PILOT CORPORATION
    Inventor: Hisashi NAKAMURA
  • Patent number: 9738229
    Abstract: A carrier bar is provided, capable of enabling suitable assembly work of the stay and improving freedom in adjustment of stay assembly position relative to carrier bar, disclosed is a carrier bar having shell formed along longitudinal direction and hollow zones in cross-sectional structure so as to be assembled to stay by using a clamp mechanism having a head and a constricted portion to form a base carrier. Shell has assembly and positioning openings extending toward the longitudinal end of shell by using assembly opening as a basal end and having a terminated end formed by longitudinal end of shell. Assembly opening has an opening width and an opening length into which the head of clamp mechanism is insertable. Positioning opening has an opening width narrower than that of assembly opening, along which the constricted portion is slidable, and an opening length longer than that of assembly opening.
    Type: Grant
    Filed: September 12, 2014
    Date of Patent: August 22, 2017
    Assignee: CAR MATE MFG. CO., LTD.
    Inventors: Yuichi Sato, Daisuke Kisaka, Hisashi Nakamura
  • Publication number: 20170052134
    Abstract: Provided is a combustion experiment device, which includes a reaction tube into which a sample fluid flows and to which a temperature gradient in which a temperature rises toward a downstream side is imparted, and a burner part that is configured to flow a combustible gas along and around the reaction tube from the downstream side to an upstream side of the reaction tube and to maintain a flame surrounding the reaction tube from the outside in a radial direction of the reaction tube.
    Type: Application
    Filed: November 9, 2016
    Publication date: February 23, 2017
    Applicants: Tohoku University, IHI Corporation
    Inventors: Takuya TEZUKA, Hisashi NAKAMURA, Kaoru MARUTA, Soichiro KATO, Shintaro ITO
  • Patent number: 9562868
    Abstract: In a combustion experimental apparatus to obtain the positions of flames formed inside a tube (1), it is possible to adjust a temperature gradient in a longitudinal direction applied to the tube, by including a temperature-adjusting fluid supply device (2) to cause a temperature-adjusting fluid to flow along the tube.
    Type: Grant
    Filed: November 18, 2011
    Date of Patent: February 7, 2017
    Assignees: TOHOKU UNIVERSITY, IHI CORPORATION
    Inventors: Kaoru Maruta, Hisashi Nakamura, Soichiro Kato, Naoki Oikawa
  • Patent number: 9523668
    Abstract: A fuel property determination method includes a reaction mechanism analysis process (S1) of analyzing elementary reactions that compose chemical reactions between a plurality of types of initial materials including the materials that compose the fuel and obtaining the elementary reactions as fuel elementary reactions, and an octane number determination process (S2) of calculating the combustion characteristics of the fuel by performing a simulation based on the fuel elementary reactions and determining the octane number based on the combustion characteristics of the fuel.
    Type: Grant
    Filed: May 18, 2010
    Date of Patent: December 20, 2016
    Assignees: TOHOKU UNIVERSITY, IHI CORPORATION
    Inventors: Kaoru Maruta, Hisashi Nakamura, Soichiro Kato
  • Publication number: 20160280143
    Abstract: A carrier bar is provided, capable of enabling suitable assembly work of the stay and improving freedom in adjustment of stay assembly position relative to carrier bar, disclosed is a carrier bar having shell formed along longitudinal direction and hollow zones in cross-sectional structure so as to be assembled to stay by using a clamp mechanism having a head and a constricted portion to form a base carrier. Shell has assembly and positioning openings extending toward the longitudinal end of shell by using assembly opening as a basal end and having a terminated end formed by longitudinal end of shell. Assembly opening has an opening width and an opening length into which the head of clamp mechanism is insertable. Positioning opening has an opening width narrower than that of assembly opening, along which the constricted portion is slidable, and an opening length longer than that of assembly opening.
    Type: Application
    Filed: September 12, 2014
    Publication date: September 29, 2016
    Applicant: CAR MATE MFG. CO., LTD.
    Inventors: Yuichi SATO, Daisuke KISAKA, Hisashi NAKAMURA
  • Patent number: 9322818
    Abstract: The fuel physical property determination method relating to the first aspect of the present invention includes: a test fuel flame-imaging step of obtaining imaging data by imaging flames formed by supplying a pre-mixed gas containing a test fuel and an oxidant agent, to a test tube in which an internal flow path thereof has a diameter set smaller than a flame-quenching distance at normal temperature; and a physical property determination step of determining a physical property of the test fuel by comparing the imaging data obtained in the test fuel flame-imaging step and imaging data obtained by imaging flames ignited by supplying a pre-mixed gas containing a standard-mixed fuel and an oxidant agent, to the test tube, the standard-mixed fuel having a known physical property.
    Type: Grant
    Filed: March 7, 2012
    Date of Patent: April 26, 2016
    Assignees: TOHOKU UNIVERSITY, IHI CORPORATION, IHI INSPECTION & INSTRUMENTATION CO., LTD.
    Inventors: Kaoru Maruta, Hisashi Nakamura, Soichiro Kato, Kunio Matsui, Akira Sase, Tsuyoshi Saura
  • Publication number: 20140291585
    Abstract: [Object] To provide a reversibly thermochromic composition free from accidental discoloration by heat conducting from the opposite side writing surface or by self-heating due to quick writing; and also to provide a solid writing material and a writing ink composition comprising that composition. [Means to solve the problem] A reversibly thermochromic composition comprising a combination of: (a) a reversibly thermochromic component capable of being discolored or decolored by heat and (b) a component for controlling heat conducting to the reversibly thermochromic component; and also a solid writing material and a writing ink composition comprising that composition.
    Type: Application
    Filed: October 15, 2012
    Publication date: October 2, 2014
    Applicant: KABUSHIKI KAISHA PILOT CORPORATION
    Inventors: Taro Tozuka, Hisashi Nakamura
  • Publication number: 20130340502
    Abstract: The fuel physical property determination method relating to the first aspect of the present invention includes: a test fuel flame-imaging step of obtaining imaging data by imaging flames formed by supplying a pre-mixed gas containing a test fuel and an oxidant agent, to a test tube in which an internal flow path thereof has a diameter set smaller than a flame-quenching distance at normal temperature; and a physical property determination step of determining a physical property of the test fuel by comparing the imaging data obtained in the test fuel flame-imaging step and imaging data obtained by imaging flames ignited by supplying a pre-mixed gas containing a standard-mixed fuel and an oxidant agent, to the test tube, the standard-mixed fuel having a known physical property.
    Type: Application
    Filed: March 7, 2012
    Publication date: December 26, 2013
    Inventors: Kaoru Maruta, Hisashi Nakamura, Soichiro Kato, Kunio Matsui, Akira Sase, Tsuyoshi Saura
  • Publication number: 20130235898
    Abstract: In a combustion experimental apparatus to obtain the positions of flames formed inside a tube (1), it is possible to adjust a temperature gradient in a longitudinal direction applied to the tube, by including a temperature-adjusting fluid supply device (2) to cause a temperature-adjusting fluid to flow along the tube.
    Type: Application
    Filed: November 18, 2011
    Publication date: September 12, 2013
    Inventors: Kaoru Maruta, Hisashi Nakamura, Soichiro Kato, Naoki Oikawa
  • Patent number: 8511926
    Abstract: A water-based ballpoint pen using a cemented carbide ball comprising tungsten carbide and a metal binder as a writing front end, wherein cobalt and/or nickel are contained in the cemented carbide ball as the metal binder in an amount of 1 to 20% by weight based on the total amount of the ball and which further includes an aqueous ink composition containing a colorant, water, a phosphate ester-based surfactant, and any one or more compounds of a thiadiazole represented by formula (1), 5-mercapto-3-phenyl-1,3,4-thiadiazole-2-thione or a salt thereof, and an oligomer of 2,5-dimercapto-1,3,4-thiadiazole: wherein X and Y each represents any substituent of CH3, NH2, and SM, and M represents any of hydrogen, an alkali metal, an ammonium, and an alkanolamine.
    Type: Grant
    Filed: March 17, 2009
    Date of Patent: August 20, 2013
    Assignee: The Pilot Ink Co., Ltd.
    Inventors: Nobuyuki Kitaoka, Hisashi Nakamura, Itsuka Goshima
  • Publication number: 20120295365
    Abstract: A fuel property determination method includes a reaction mechanism analysis process (S1) of analyzing elementary reactions that compose chemical reactions between a plurality of types of initial materials including the materials that compose the fuel and obtaining the elementary reactions as fuel elementary reactions, and an octane number determination process (S2) of calculating the combustion characteristics of the fuel by performing a simulation based on the fuel elementary reactions and determining the octane number based on the combustion characteristics of the fuel.
    Type: Application
    Filed: May 18, 2010
    Publication date: November 22, 2012
    Inventors: Kaoru Maruta, Hisashi Nakamura, Soichiro Kato
  • Patent number: 8186836
    Abstract: A mobile projector apparatus includes a light source, a modulation unit modulating light of the light source using a picture signal, a projection lens magnifying and projecting the modulated light of the light source, a battery supplying electric power to the light source, an acceleration measuring unit measuring an acceleration applied to the mobile projector apparatus, a usage state detecting unit detecting whether or not the mobile projector apparatus is in an unused state, and an extinguishing unit extinguishing the light source based on outputs of the acceleration measuring unit and the usage state detecting unit.
    Type: Grant
    Filed: March 26, 2009
    Date of Patent: May 29, 2012
    Assignee: SANYO Electric Co., Ltd.
    Inventor: Hisashi Nakamura
  • Patent number: 8077188
    Abstract: A gamma correction device for a liquid crystal display device including LCD panels. The gamma correction device includes a storage device for storing gamma correction data corresponding to chiral directions of LCD panels. A chiral direction data acquisition circuit acquires chirality data on the chiral direction of a LCD panel arranged in the liquid crystal display device. A control circuit sets a gamma correction datum adapted to the chiral directions of the LCD panel arranged in the liquid crystal display device selectively from the stored gamma correction data based on the acquired chirality data. A gamma correction circuit performs a gamma correction process on image signals provided to the LCD panel using the set gamma correction datum.
    Type: Grant
    Filed: October 29, 2007
    Date of Patent: December 13, 2011
    Assignee: SANYO Electric Co., Ltd.
    Inventors: Akio Muraji, Kazunobu Oketani, Satoshi Nakajo, Hiromitsu Okuno, Hisashi Nakamura
  • Publication number: 20110297000
    Abstract: An air filter coupled to an air inlet, which draws in air. The air filter is automatically cleaned to prevent clogging. When the supply of power is cut off during a cleaning operation sequence of the air filter and the electronic device restarts operation thereafter, the interrupted cleaning operation sequence is completed. An automatic cleaning operation may be performed on the air filter when a video projector, which serves as an electronic device, starts to operate. In addition, an automatic cleaning operation may he performed on the air filter when clogging of the air filter is detected.
    Type: Application
    Filed: June 1, 2011
    Publication date: December 8, 2011
    Applicant: Sanyo Electric Co., Ltd.
    Inventors: Kazunori KOTANI, Hisashi Nakamura
  • Patent number: 7884812
    Abstract: Disclosed is a liquid crystal projector comprising operation means for operating a liquid crystal projector; means for previously registering a password; means for entering, in a case where the password is registered, a password when the power to the liquid crystal projector is turned on; and means for comparing the entered password with the registered password and making it possible to operate the liquid crystal projector by the operation means only when both the passwords coincide with each other.
    Type: Grant
    Filed: August 20, 2003
    Date of Patent: February 8, 2011
    Assignee: Sanyo Electric Co., Ltd.
    Inventors: Hisashi Nakamura, Tomohiko Fujii
  • Patent number: D911396
    Type: Grant
    Filed: July 17, 2019
    Date of Patent: February 23, 2021
    Assignee: Hitachi Construction Machinery Co., Ltd.
    Inventors: Atsushi Ninomiya, Yusuke Daimon, Katsumi Usami, Hiroyuki Ishida, Takatomo Ohno, Amane Yamada, Hisashi Nakamura, Ami Handa
  • Patent number: D915469
    Type: Grant
    Filed: July 17, 2019
    Date of Patent: April 6, 2021
    Assignee: Hitachi Construction Machinery Co., Ltd.
    Inventors: Atsushi Ninomiya, Yusuke Daimon, Katsumi Usami, Hiroyuki Ishida, Takatomo Ohno, Amane Yamada, Hisashi Nakamura, Ami Handa