Patents by Inventor Kazuyoshi Masaki

Kazuyoshi Masaki 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: 20230395817
    Abstract: A carbon material for a catalyst carrier of a polymer electrolyte fuel cell, in which a nitrogen adsorption/desorption isotherm exhibits two hysteresis loops having a first hysteresis loop and a second hysteresis loop in a range where a relative pressure P/P0 is 0.4 or more.
    Type: Application
    Filed: October 19, 2021
    Publication date: December 7, 2023
    Applicant: NIPPON STEEL CHEMICAL & MATERIAL CO., LTD.
    Inventors: Kazuyoshi Masaki, Wakana Tada, Takehiro Shimizu, Kenichiro Tadokoro, Takashi Iijima, Masataka Hiyoshi, Shinya Furukawa, Tomoko Komura
  • Patent number: 11302928
    Abstract: The present invention is a carbon material for a catalyst carrier of a polymer electrolyte fuel cell, which has a three-dimensional dendritic structure, and simultaneously satisfies the following (A), (B), and (C). (A) By a laser Raman spectroscopic analysis with a wavelength of 532 nm, a standard deviation ?(R) of an intensity ratio (R value) of an intensity of a D-band (near 1360 cm?1) to an intensity of a G-band (near 1580 cm?1) measured with a beam diameter of 1 ?m at 50 measurement points is from 0.01 to 0.07. (B) A BET specific surface area SBET is from 400 to 1520 m2/g. (C) A nitrogen gas adsorption amount VN:0.4-0.8 during a relative pressure (p/p0) from 0.4 to 0.8 is from 100 to 300 cc(STP)/g. A method of producing such a carbon material for a catalyst carrier is also included.
    Type: Grant
    Filed: April 2, 2018
    Date of Patent: April 12, 2022
    Assignee: NIPPON STEEL CHEMICAL & MATERIAL CO., LTD.
    Inventors: Takashi Iijima, Kenichiro Tadokoro, Masataka Hiyoshi, Shinya Furukawa, Tomoko Komura, Kazuyoshi Masaki, Hiroyuki Hayashida, Wakana Tada
  • Publication number: 20210344019
    Abstract: Provided are a carbon material for a catalyst carrier of a polymer electrolyte fuel cell, the carbon material being a porous carbon material and simultaneously satisfying (1) an intensity ratio (I750/Ipeak) of an intensity at 750° C. (I750) and a peak intensity in a vicinity of 690° C. (Ipeak), in a derivative thermogravimetric curve (DTG) obtained by a thermogravimetric analysis when a temperature is raised at a rate of 10° C./min under an air atmosphere, is 0.10 or less; (2) a BET specific surface area, determined by BET analysis of a nitrogen gas adsorption isotherm, is from 400 to 1,500 m2/g; (3) an integrated pore volume V2-10 of a pore diameter of from 2 to 10 nm, determined by analysis of the nitrogen gas adsorption isotherm using Dollimore-Heal method, is from 0.4 to 1.5 mL/g; and (4) a nitrogen gas adsorption amount Vmacro at a relative pressure of from 0.95 to 0.99 in the nitrogen gas adsorption isotherm is from 300 to 1,200 cc(STP)/g, as well as a method of producing the same.
    Type: Application
    Filed: September 28, 2018
    Publication date: November 4, 2021
    Applicant: Nippon Steel Chemical & Material Co., Ltd.
    Inventors: Takashi Iijima, Kenichiro Tadokoro, Masataka Hiyoshi, Shinya Furukawa, Tomoko Komura, Kazuyoshi Masaki, Hiroyuki Hayashida, Wakana Tada
  • Publication number: 20200119367
    Abstract: A carbon material for use as a catalyst carrier for a polymer electrolyte fuel cell which is a porous carbon material and satisfies at the same time (1) the content of a crystallized material is 1.6 or less, (2) the BET specific surface area obtained by a BET analysis of a nitrogen gas adsorption isotherm is from 400 to 1500 m2/g, (3) the cumulative pore volume V2-10 with respect to a pore diameter of from 2 to 10 nm obtained by an analysis of a nitrogen gas adsorption isotherm using the Dollimore-Heal method is from 0.4 to 1.5 mL/g, and (4) the nitrogen gas adsorption amount Vmacro between a relative pressure of 0.95 and 0.99 in a nitrogen gas adsorption isotherm is from 300 to 1200 cc(STP)/g, and the method of producing the same.
    Type: Application
    Filed: April 2, 2018
    Publication date: April 16, 2020
    Applicant: NIPPON STEEL CHEMICAL & MATERIAL CO., LTD.
    Inventors: Takashi IIJIMA, Kenichiro TADOKORO, Masataka HIYOSHI, Shinya FURUKAWA, Tomoko KOMURA, Kazuyoshi MASAKI, Hiroyuki HAYASHIDA, Wakana TADA
  • Publication number: 20200055026
    Abstract: A carbon material for a catalyst carrier of a polymer electrolyte fuel cell a porous carbon material with a three-dimensionally branched three-dimensional dendritic structure, has a branch diameter of 81 nm or less, and simultaneously satisfies conditions (A) and (B) whereby: (A) a BET specific surface area SBET is from 400 to 1500 m2/g; and (B) with respect to a relationship between a mercury pressure PHg and a mercury absorption amount VHg measured by mercury porosimetry, an increment ?VHg:4.3-4.8 of the measured mercury absorption amount VHg is from 0.82 to 1.50 cc/g in a case in which the common logarithm Log PHg of the mercury pressure PHg has increased from 4.3 to 4.8. A method of producing this kind of a carbon material for a catalyst carrier is also provided.
    Type: Application
    Filed: April 2, 2018
    Publication date: February 20, 2020
    Applicants: NIPPON STEEL CORPORATION, NIPPON STEEL CHEMICAL & MATERIAL CO., LTD.
    Inventors: Takashi IIJIMA, Wakana TADA, Kazuyoshi MASAKI
  • Publication number: 20200044261
    Abstract: The present invention is a carbon material for a catalyst carrier of a polymer electrolyte fuel cell, which has a three-dimensional dendritic structure, and simultaneously satisfies the following (A), (B), and (C). (A) By a laser Raman spectroscopic analysis with a wavelength of 532 nm, a standard deviation ?(R) of an intensity ratio (R value) of an intensity of a D-band (near 1360 cm?1) to an intensity of a G-band (near 1580 cm?1) measured with a beam diameter of 1 ?m at 50 measurement points is from 0.01 to 0.07. (B) A BET specific surface area SBET is from 400 to 1520 m2/g. (C) A nitrogen gas adsorption amount VN:0.4-0.8 during a relative pressure (p/p0) from 0.4 to 0.8 is from 100 to 300 cc(STP)/g. A method of producing such a carbon material for a catalyst carrier is also included.
    Type: Application
    Filed: April 2, 2018
    Publication date: February 6, 2020
    Applicants: NIPPON STEEL CORPORATION, NIPPON STEEL CHEMICAL & MATERIAL CO., LTD.
    Inventors: Takashi IIJIMA, Kenichiro TADOKORO, Masataka HIYOSHI, Shinya FURUKAWA, Tomoko KOMURA, Kazuyoshi MASAKI, Hiroyuki HAYASHIDA, Wakana TADA
  • Patent number: 8911805
    Abstract: A stable Ca preparation in solution form even at high concentration is provided. The aqueous preparation of Ca includes water, Ca, compounds of Formula I and Formula II. Most of Ca is in non-ionic form and forms a complex. In the complex, Ca binds to the compound(s) of Formula I and/or Formula II in a state that basic structures of them are kept. At least partially, the complex forms colloidal particles. The aqueous preparation is transparent. pH is equal to or higher than that of slightly acid; [A1, A2, A3, A4, A5 and A6 are independently O? or OX. X represents a monovalent or polyvalent cation].
    Type: Grant
    Filed: September 27, 2012
    Date of Patent: December 16, 2014
    Assignee: Toyo Suisan Kaisha, Ltd.
    Inventors: Tsutomu Yoshida, Toshitaka Yasuda, Manabu Shimojoh, Kazuyoshi Masaki
  • Publication number: 20140349218
    Abstract: A photosensitive material includes: a polymer matrix, a radical polymerization monomer and photo-radical polymerization initiator, wherein the polymer matrix has stable nitroxy radical at side chain thereof, wherein a molar ratio of the stable nitroxy radical to the radical polymerization monomer is set within a range of 0.03 to 0.25.
    Type: Application
    Filed: November 12, 2012
    Publication date: November 27, 2014
    Applicant: NIPPON STEEL & SUMIKIN CHEMICAL CO., LTD
    Inventors: Takehiro Shimizu, Toshio Ando, Kazuyoshi Masaki
  • Patent number: 8837267
    Abstract: A recording signal beam and a recording reference beam are irradiated onto a first surface of a holographic recording medium to write an information as an interference pattern therein. Next, a reflective layer is provided on a second surface opposite to the first surface of the holographic recording medium such that the reflective layer is adhered with the second surface, and a reproducing reference beam is irradiated onto the first surface of the holographic recording medium so as to read a signal beam which is reflected at the reflective layer and reproduced from the holographic recording medium.
    Type: Grant
    Filed: July 17, 2009
    Date of Patent: September 16, 2014
    Assignee: Nippon Steel & Sumikin Chemical Co., Ltd.
    Inventors: Toshio Ando, Takehiro Shimizu, Kazuyoshi Masaki
  • Publication number: 20130321783
    Abstract: The present invention pertains to a vector wave recording medium which: has an information recording layer comprising a photo-induced birefringence material; irradiates a recording signal light of a first polarization state, and a recording reference light of a second polarization state that differs to the first polarization state; and carries out vector wave multiplex recording by holography on the information recording layer. The vector wave recording medium is configured in such a manner that ?min/?max=0.1 is satisfied, where, assuming irradiation energy for the recording signal light and the recording reference light is constant, the maximum value of the diffraction efficiency of a playback signal light from diffraction gratings corresponding to information recorded in the information recording layer after the vector wave multiplex recording has been carried out by holography on the information recording layer, is regarded as ?max, and the minimum value is regarded as ?min.
    Type: Application
    Filed: March 14, 2012
    Publication date: December 5, 2013
    Applicant: NIPPON STEEL & SUMIKIN CHEMICAL CO., LTD.
    Inventors: Toshio Ando, Kazuyoshi Masaki, Takehiro Shimizu, Takashi Fukuda
  • Patent number: 8399156
    Abstract: Disclosed are a volume phase hologram recording material having high sensitivity, high contrast, and excellent multiple recording and record holding properties and a volume phase hologram recording medium using the same. The volume phase hologram recording material comprises mainly a polymer matrix (a), a radically photopolymerizable compound (b), and a radical photopolymerization initiator (c) and the polymer matrix is a three-dimensionally crosslinked or linear polymer matrix formed from a polymer matrix-forming material containing 0.5-50 wt % of an episulfide compound (f), an epoxy compound (g), and a curing agent (h).
    Type: Grant
    Filed: July 22, 2008
    Date of Patent: March 19, 2013
    Assignee: Nippon Steel Chemical Co., Ltd.
    Inventors: Kohei Tomari, Hidetaka Fujimatsu, Kazuyoshi Masaki, Takehiro Shimizu, Yasuji Shichijo
  • Publication number: 20130022733
    Abstract: A stable Ca preparation in solution form even at high concentration is provided. The aqueous preparation of Ca includes water, Ca, compounds of Formula I and Formula II. Most of Ca is in non-ionic form and forms a complex. In the complex, Ca binds to the compound(s) of Formula I and/or Formula II in a state that basic structures of them are kept. At least partially, the complex forms colloidal particles. The aqueous preparation is transparent. pH is equal to or higher than that of slightly acid; [A1, A2, A3, A4, A5 and A6 are independently O? or OX. X represents a monovalent or polyvalent cation].
    Type: Application
    Filed: September 27, 2012
    Publication date: January 24, 2013
    Applicant: TOYO SUISAN KAISHA, LTD.
    Inventors: Tsutomu YOSHIDA, Toshitaka YASUDA, Manabu SHIMOJOH, Kazuyoshi MASAKI
  • Patent number: 8298726
    Abstract: Disclosed is a volume phase hologram recording material of high sensitivity, high contrast, and excellent record retention properties and also disclosed is a volume phase hologram recording medium using the said material. The volume phase hologram recording material mainly contains a three-dimensional crosslinked polymer matrix, a radically polymerizable monomer, and a photoradical polymerization initiator. The three-dimensional crosslinked polymer matrix is formed from a matrix-forming compound having two photoradically polymerizable unsaturated groups and two non-photoradically polymerizable hydroxyl groups represented by the following general formula (1) and another matrix-forming compound having no photoradically polymerizable group.
    Type: Grant
    Filed: February 4, 2008
    Date of Patent: October 30, 2012
    Assignee: Nippon Steel Chemical Co., Ltd.
    Inventors: Takehiro Shimizu, Kazuyoshi Masaki, Hidetaka Fujimatsu
  • Patent number: 7973145
    Abstract: Sulfoquinovosylacyl propanediol compounds represented by formula (I): wherein R1 is an acyl residue of a fatty acid, Y is a number of 1, 2 or 3, and M represents a cation having a positive charge equal to Y and pharmaceutically acceptable salts thereof are effective for treating tumors.
    Type: Grant
    Filed: January 29, 2009
    Date of Patent: July 5, 2011
    Assignee: Toyo Suisan Kaisha, Ltd.
    Inventors: Keisuke Ohta, Masahiko Miura, Kengo Sakaguchi, Fumio Sugawara, Noriyuki Sato, Hiroeki Sahara, Nobuaki Takahashi, Yoko Mori, Takayuki Yamazaki, Kazuyoshi Masaki, Hiroshi Murata
  • Publication number: 20110134741
    Abstract: A recording signal beam and a recording reference beam are irradiated onto a first surface of a holographic recording medium to write an information as an interference pattern therein. Next, a reflective layer is provided on a second surface opposite to the first surface of the holographic recording medium such that the reflective layer is adhered with the second surface, and a reproducing reference beam is irradiated onto the first surface of the holographic recording medium so as to read a signal beam which is reflected at the reflective layer and reproduced from the holographic recording medium.
    Type: Application
    Filed: July 17, 2009
    Publication date: June 9, 2011
    Inventors: Toshio Ando, Takehiro Shimizu, Kazuyoshi Masaki
  • Publication number: 20100298246
    Abstract: Sulfoquinovosylacyl propanediol compounds represented by formula (I): wherein R1 is an acyl residue of a fatty acid, Y is a number of 1, 2 or 3, and M represents a cation having a positive charge equal to Y and pharmaceutically acceptable salts thereof are effective for treating tumors.
    Type: Application
    Filed: July 30, 2010
    Publication date: November 25, 2010
    Applicant: TOYO SUISAN KAISHA, LTD.
    Inventors: Keisuke Ohta, Masahiko Miura, Kengo Sakaguchi, Fumio Sugawara, Noriyuki Sato, Hiroeki Sahara, Nobuaki Takahashi, Yoko Mori, Takayuki Yamazaki, Kazuyoshi Masaki, Hiroshi Murata
  • Publication number: 20100203429
    Abstract: Disclosed are a volume phase hologram recording material having high sensitivity, high contrast, and excellent multiple recording and record holding properties and a volume phase hologram recording medium using the same. The volume phase hologram recording material comprises mainly a polymer matrix (a), a radically photopolymerizable compound (b), and a radical photopolymerization initiator (c) and the polymer matrix is a three-dimensionally crosslinked or linear polymer matrix formed from a polymer matrix-forming material containing 0.5-50 wt % of an episulfide compound (f), an epoxy compound (g), and a curing agent (h).
    Type: Application
    Filed: July 22, 2008
    Publication date: August 12, 2010
    Applicant: NIPPON STEEL CHEMICAL CO., LTD.
    Inventors: Kohei Tomari, Hidetaka Fujimatsu, Kazuyoshi Masaki, Takehiro Shimizu, Yasuji Shichijo
  • Publication number: 20090310196
    Abstract: Disclosed is a volume phase hologram recording material of high sensitivity, high contrast, and excellent record retention properties and also disclosed is a volume phase hologram recording medium using the said material. The volume phase hologram recording material mainly contains a three-dimensional crosslinked polymer matrix, a radically polymerizable monomer, and a photoradical polymerization initiator. The three-dimensional crosslinked polymer matrix is formed from a matrix-forming compound having two photoradically polymerizable unsaturated groups and two non-photoradically polymerizable hydroxyl groups represented by the following general formula (1) and another matrix-forming compound having no photoradically polymerizable group.
    Type: Application
    Filed: February 4, 2008
    Publication date: December 17, 2009
    Inventors: Takehiro Shimizu, Kazuyoshi Masaki, Hidetaka Fujimatsu
  • Publication number: 20090246325
    Abstract: The present invention provides instant noodles containing agar and curdlan, having water absorption of 250% or more upon reconstitution with water at 20° C. for 3 minutes, and being capable of reconstitution with water in a time of 5 minutes or less, and having an excellent texture with suitable hardness.
    Type: Application
    Filed: February 1, 2008
    Publication date: October 1, 2009
    Inventors: Toshitaka Yasuda, Kohji Nakajima, Mika Takenouchi, Motoki Mizuno, Junya Kanayama, Kazuyoshi Masaki, Akihiro Hanaoka, Hiroyuki Minami
  • Publication number: 20090209475
    Abstract: Sulfoquinovosylacyl propanediol compounds represented by formula (I): wherein R1 is an acyl residue of a fatty acid, Y is a number of 1, 2 or 3, and M represents a cation having a positive charge equal to Y and pharmaceutically acceptable salts thereof are effective for treating tumors.
    Type: Application
    Filed: January 29, 2009
    Publication date: August 20, 2009
    Applicant: TOYO SUISAN KAISHA, LTD.
    Inventors: Keisuke Ohta, Masahiko Miura, Kengo Sakaguchi, Fumio Sugawara, Noriyuki Sato, Hiroeki Sahara, Nobuaki Takahashi, Yoko Mori, Takayuki Yamazaki, Kazuyoshi Masaki, Hiroshi Murata