Patents by Inventor Katsunori Iwasaki

Katsunori Iwasaki 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: 11951973
    Abstract: A drive system of an electric vehicle includes: an internal combustion engine; a generating motor provided so as to be able to generate electricity by receiving motive force from the internal combustion engine; and a travel motor provided so as to be able to be driven by electric power generated by the generating motor, and the drive system is configured so as to be able to switch a series hybrid mode and an engine direct connected mode, the series hybrid mode being a mode in which, while the internal combustion engine and the drive wheel are linked via a first clutch so as to be unlinkable/linkable, the travel motor and the drive wheel are linked via a second clutch different from the first clutch so as to be unlinkable/linkable, and the travel motor is used as a drive power source such that the electric vehicle travels by transmitting motive force from the travel motor to the drive wheel, the engine direct connected mode being a mode in which at least one of the internal combustion engine and the generator
    Type: Grant
    Filed: September 26, 2018
    Date of Patent: April 9, 2024
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Takayuki Kagaya, Masato Koga, Yuuki Nakajima, Katsunori Tanaka, Tetsuya Iwasaki
  • Publication number: 20230147196
    Abstract: The object of the present invention is to provide a mitochondrial dysfunction improving agent comprising a vitamin K derivative having a high deliverability to mitochondria. A mitochondrial dysfunction improving agent, neurodegeneration improving agent, amyotrophic lateral sclerosis improving agent, Alzheimer's disease improving agent, and Parkinson's disease improving agent comprising at least one of a carboxylic acid ester of an active vitamin K represented by a general formula (1) or a salt thereof, and (wherein, R1 and R2 are a hydrogen atom, respectively, or a substituent selected from glycine, N-acyl glycine, N-alkyl glycine, N,N-dialkyl glycine, N,N,N-trialkyl glycine, acyl, dicarboxylic acid hemiester, and salts thereof; and at least either of R1 and R2 is glycine, N-acyl glycine, N-alkyl glycine, N,N-dialkyl glycine, N,N,N-trialkyl glycine, acyl, dicarboxylic acid hemiester, and salts thereof. R3 is a group represented by a general formula (2), or a general formula (3).
    Type: Application
    Filed: March 11, 2021
    Publication date: May 11, 2023
    Inventors: Jiro TAKATA, Kazuhisa MATSUNAGA, Yoshiharu KARUBE, Katsunori IWASAKI, Shuichi SETOGUCHI, Kazuki TERADA
  • Patent number: 8409498
    Abstract: A sputter target material which is of a sintered material, wherein the sputter target material consists of 0.5 to 50 atomic % in total of at least one metal element (M) selected from the group of Ti, Zr, V, Nb and Cr, and the balance of Mo and unavoidable impurities, and has a microstructure seen at a perpendicular cross section to a sputtering surface, in which microstructure oxide particles exist near a boundary of each island of the metal element (M), and wherein the maximum area of the island, which is defined by connecting the oxide particles with linear lines so as to form a closed zone, is not more than 1.0 mm2.
    Type: Grant
    Filed: June 5, 2009
    Date of Patent: April 2, 2013
    Assignee: Hitachi Metals, Ltd.
    Inventors: Keisuke Inoue, Tsuyoshi Fukui, Shigeru Taniguchi, Norio Uemura, Katsunori Iwasaki, Kazuya Saitoh
  • Patent number: 8242302
    Abstract: It is intended to provide a drug which is efficacious in treating and preventing diseases wherein ischemia or an inflammatory substance associated with ischemia participates in the onset or worsening thereof. Because of containing as the active ingredient a substance selected from among farnesol, a farnesol derivative, a tocopherol derivative, a tocotrienol derivative, pharmacologically acceptable salts thereof and solvates thereof, the above-described inhibitor of ischemic disorders can exert therapeutic and preventive effects on diseases wherein ischemia or an inflammatory substance associated with ischemia participates in the onset or worsening thereof (for example, brain infarction, brain edema, cardiac infarction, etc.) not only by the administration in the acute ischemic stage but also by the therapeutic administration in subacute and/or chronic stages after ischemia-reperfusion. It is also intended to provide a farnesol carboxylic acid ester derivative and a method of producing the same.
    Type: Grant
    Filed: September 1, 2008
    Date of Patent: August 14, 2012
    Assignee: Fukuoka University
    Inventors: Jiro Takata, Kenichi Mishima, Manabu Nakashima, Katsunori Iwasaki, Kazuhisa Matsunaga, Yoshiharu Karube, Michihiro Fujiwara
  • Publication number: 20100217006
    Abstract: It is intended to provide a drug which is efficacious in treating and preventing diseases wherein ischemia or an inflammatory substance associated with ischemia participates in the onset or worsening thereof. Because of containing as the active ingredient a substance selected from among farnesol, a farnesol derivative, a tocopherol derivative, a tocotrienol derivative, pharmacologically acceptable salts thereof and solvates thereof, the above-described inhibitor of ischemic disorders can exert therapeutic and preventive effects on diseases wherein ischemia or an inflammatory substance associated with ischemia participates in the onset or worsening thereof (for example, brain infarction, brain edema, cardiac infarction, etc.) not only by the administration in the acute ischemic stage but also by the therapeutic administration in subacute and/or chronic stages after ischemia-reperfusion. It is also intended to provide a farnesol carboxylic acid ester derivative and a method of producing the same.
    Type: Application
    Filed: September 1, 2008
    Publication date: August 26, 2010
    Applicant: FUKUOKA UNIVERSITY
    Inventors: Jiro Takata, Kenichi Mishima, Manabu Nakashima, Katsunori Iwasaki, Kazuhisa Matsunaga, Yoshiharu Karube, Michihiro Fujiwara
  • Publication number: 20090238712
    Abstract: A sputter target material which is of a sintered material, wherein the sputter target material consists of 0.5 to 50 atomic % in total of at least one metal element (M) selected from the group of Ti, Zr, V, Nb and Cr, and the balance of Mo and unavoidable impurities, and has a microstructure seen at a perpendicular cross section to a sputtering surface, in which microstructure oxide particles exist near a boundary of each island of the metal element (M), and wherein the maximum area of the island, which is defined by connecting the oxide particles with linear lines so as to form a closed zone, is not more than 1.0 mm2.
    Type: Application
    Filed: June 5, 2009
    Publication date: September 24, 2009
    Applicant: HITACHI METALS, LTD.
    Inventors: Keisuke Inoue, Tsuyoshi Fukui, Shigeru Taniguchi, Norio Uemura, Katsunori Iwasaki, Kazuya Saitoh
  • Publication number: 20060118413
    Abstract: A sputtering target is provided, including a target material and a backing plate that are bonded with a strong adhesion at a reduced cost. The method for bonding the target material and the backing plate does not use a special soldering material, and is therefore cheaper and more reliable. The target includes an inorganic target material and a backing plate that are bonded with a soldering material between them. At least one of the target material and the backing plate is coated with a coupling agent of a semi-metal oxide or a metal oxide.
    Type: Application
    Filed: January 27, 2006
    Publication date: June 8, 2006
    Inventors: Shigeru Taniguchi, Katsunori Iwasaki
  • Publication number: 20050230244
    Abstract: A sputter target material which is of a sintered material, wherein the sputter target material consists of 0.5 to 50 atomic % in total of at least one metal element (M) selected from the group of Ti, Zr, V, Nb and Cr, and the balance of Mo and unavoidable impurities, and has a microstructure seen at a perpendicular cross section to a sputtering surface, in which microstructure oxide particles exist near a boundary of each island of the metal element (M), and wherein the maximum area of the island, which is defined by connecting the oxide particles with linear lines so as to form a closed zone, is not more than 1.0 mm2.
    Type: Application
    Filed: March 3, 2005
    Publication date: October 20, 2005
    Inventors: Keisuke Inoue, Tsuyoshi Fukui, Shigeru Taniguchi, Norio Uemura, Katsunori Iwasaki, Kazuya Saitoh
  • Publication number: 20050191202
    Abstract: Disclosed is a method of producing a target material of a Mo alloy, which includes the steps of (a) preparing a green compact by compressing a raw material powder blend consisting of a Mo powder having an average particle size of not more than 20 ?m and a transition metal powder having an average particle size of not more than 500 ?m; (b) pulverizing the green compact to produce a secondary powder having an average particle size of from not less than an average particle size of the raw material powder blend to not more than 10 mm; (c) filling the secondary powder into a container for pressurizing; and (d) subjecting the secondary powder with the container for pressurizing to sintering under pressure thereby obtaining a sintered body of the target material.
    Type: Application
    Filed: February 25, 2005
    Publication date: September 1, 2005
    Inventors: Katsunori Iwasaki, Keisuke Inoue, Norio Uemura
  • Publication number: 20040118679
    Abstract: A sputtering target is provided, including a target material and a backing plate that are bonded with a strong adhesion at a reduced cost. The method for bonding the target material and the backing plate does not use a special soldering material, and is therefore cheaper and more reliable. The target includes an inorganic target material and a backing plate that are bonded with a soldering material between them. At least one of the target material and the backing plate is coated with a coupling agent of a semi-metal oxide or a metal oxide.
    Type: Application
    Filed: July 23, 2003
    Publication date: June 24, 2004
    Inventors: Shigeru Taniguchi, Katsunori Iwasaki
  • Patent number: 6599933
    Abstract: The object of the present invention is to provide a tocotrienol derivative which is highly water-soluble and shows high bioavailability in the living body and &ggr;-CEHC delivering agent. (A tocotrienolcarboxylic acid ester derivative represented by the general formula (I). (wherein R2 means a carboxylic acid residue having a nitrogen substituent, and R1 and R3 mean a hydrogen atom or a methyl group.
    Type: Grant
    Filed: March 2, 2001
    Date of Patent: July 29, 2003
    Assignees: Kenko Corporation
    Inventors: Jiro Takata, Takeshi Fukushima, Kazuhiro Imai, Yoshiharu Karube, Kazuhisa Matsunaga, Michihiro Fujiwara, Akihiro Hattori, Ryoji Hidaka, Katsunori Iwasaki, Kenichi Mishima, Shizuko Kobayashi
  • Patent number: 6537463
    Abstract: A resin-bonded magnet composed substantially of (a) an R—T—N-based magnetic powder having a basic composition of R&agr;T100−&agr;−&bgr;N&bgr;, wherein R is at least one selected form the group consisting of rare earth elements including Y, T is Fe or Fe and Co, 5≦&agr;≦20, and 5≦&bgr;≦30, (b) a ferrite magnetic powder having a substantially magnetoplumbite-type crystal structure and a basic composition represented by (A1−xR′x) O[(Fe1−yMy)2O3] by atomic ratio, wherein A is Sr and/or Ba, R′ is at least one selected from the group consisting of rare earth elements including Y, La being indispensable, M is Co or Co and Zn, 0.01≦x<0.4, 0.005≦y≦0.04, and 5.0≦n≦6.4, and (c) a binder. The ferrite magnet powder is preferably an anisotropic, granulated powder or an anisotropic, sintered ferrite magnet powder.
    Type: Grant
    Filed: December 11, 2000
    Date of Patent: March 25, 2003
    Assignee: Hitachi Metals, Ltd.
    Inventors: Katsunori Iwasaki, Masahiro Tobise, Yasunobu Ogata, Mikio Shindo, Hiroshi Okajima
  • Publication number: 20030027857
    Abstract: The object of the present invention is to provide a tocotrienol derivative which is highly water-soluble and shows high bioavailability in the living body and &ggr;-CEHC delivering agent.
    Type: Application
    Filed: March 2, 2001
    Publication date: February 6, 2003
    Applicant: Jiro Takata
    Inventors: Jiro Takata, Takeshi Fukushima, Kazuhiro Imai, Yoshiharu Karube, Kazuhisa Matsunaga, Michihiro Fujiwara, Akihiro Hattori, Ryoji Hidaka, Katsunori Iwasaki, Kenichi Mishima, Shizuko Kobayashi
  • Patent number: 6423386
    Abstract: The magnet powder-resin compound particles substantially composed of rare earth magnet powder and a binder resin are in such a round shape that a ratio of the longitudinal size a to the transverse size b (a/b) is more than 1.00 and 3 or less, and that an average particle size defined by (a/b)/2 is 50-300 &mgr;m. They are produced by charging a mixture of rare earth magnet powder and a binder resin into an extruder equipped with nozzle orifices each having a diameter of 300 &mgr;m or less; extruding the mixture while blending under pressure though the nozzle orifices to form substantially cylindrical, fine pellets; and rounding the pellets by rotation.
    Type: Grant
    Filed: April 6, 1999
    Date of Patent: July 23, 2002
    Assignee: Hitachi Metals, Ltd.
    Inventors: Katsunori Iwasaki, Kazunori Tabaru
  • Publication number: 20020084001
    Abstract: A resin-bonded magnet composed substantially of (a) an R-T-N-based magnetic powder having a basic composition of R&agr;T100-&agr;-&bgr;N&bgr;, wherein R is at least one selected form the group consisting of rare earth elements including Y, T is Fe or Fe and Co, 5≦&agr;≦20, and 5≦&bgr;≦30, (b) a ferrite magnetic powder having a substantially magnetoplumbite-type crystal structure and a basic composition represented by (A1-xR′x)O[(Fe1-yMy)2O3] by atomic ratio, wherein A is Sr and/or Ba, R′ is at least one selected from the group consisting of rare earth elements including Y, La being indispensable, M is Co or Co and Zn, 0.01≦x≦0.4, 0.005≦y≦0.04, and 5.0≦n≦6.4, and (c) a binder. The ferrite magnet powder is preferably an anisotropic, granulated powder or an anisotropic, sintered ferrite magnet powder.
    Type: Application
    Filed: December 11, 2000
    Publication date: July 4, 2002
    Inventors: Katsunori Iwasaki, Masahiro Tobise, Yasunobu Ogata, Mikio Shindo, Hiroshi Okajima
  • Publication number: 20010051246
    Abstract: The magnet powder-resin compound particles substantially composed of rare earth magnet powder and a binder resin are in such a round shape that a ratio of the longitudinal size a to the transverse size b (a/b) is more than 1.00 and 3 or less, and that an average particle size defined by (a/b)/2 is 50-300 &mgr;m. They are produced by charging a mixture of rare earth magnet powder and a binder resin into an extruder equipped with nozzle orifices each having a diameter of 300 &mgr;m or less; extruding the mixture while blending under pressure though the nozzle orifices to form substantially cylindrical, fine pellets; and rounding the pellets by rotation.
    Type: Application
    Filed: April 6, 1999
    Publication date: December 13, 2001
    Inventors: KATSUNORI IWASAKI, KAZUNORI TABARU
  • Patent number: 5286308
    Abstract: A magnetically anistropic R-T-B magnet having crystal grains having aspect ratios of 2 or more and showing a substantially uniform maximum energy product distribution is produced by (a) rapidly quenching an alloy melt; (b) finely pulverizing the rapidly quenched alloy to provide magnetic powder; (c) mixing the magnetic powder with a carbon-containing additive; (d) coating the resulting mixture with a protective layer of a first lubricant such as BN substantially unreactive with the alloy components; (e) compressing it; (f) further coating the resulting compressed body with a second lubricant such as graphite or graphite+glass; and (g) further compressing it.
    Type: Grant
    Filed: July 13, 1992
    Date of Patent: February 15, 1994
    Assignee: Hitachi Metals Ltd.
    Inventors: Makoto Shinoda, Katsunori Iwasaki, Shigeho Tanigawa, Masaaki Tokunaga
  • Patent number: 5162063
    Abstract: A magnetically anisotropic R-T-B magnet having crystal grains having aspect ratios of 2 or more and showing a substantially uniform maximum energy product distribution is produced by (a) rapidly quenching an alloy melt; (b) finely pulverizing the rapidly quenched alloy to provide magnetic powder; (c) mixing the magnetic powder with a carbon-containing additive; (d) coating the resulting mixture with a protective layer of a first lubricant such as BN substantially unreactive with the alloy components; (e) compressing it; (f) further coating the resulting compressed body with a second lubricant such as graphite or graphite+glass; and (g) further compressing it.
    Type: Grant
    Filed: November 14, 1990
    Date of Patent: November 10, 1992
    Assignee: Hitachi Metals Ltd.
    Inventors: Makoto Shinoda, Katsunori Iwasaki, Shigeho Tanigawa, Masaaki Tokunaga
  • Patent number: RE38042
    Abstract: A the magnetically anisotropic magnetic powder having an average particle size of 1-1000 &mgr;m and made from a magnetically anisotropic R-TM-B-Ga or R-TM-B-Ga-M alloy having an average crystal grain size of 0.01-0.5 &mgr;m, wherein R represents one or more rare earth elements including Y, TM represents Fe which may be partially substituted by Co, B boron, Ga gallium, and M one or more elements selected from the group consisting of Nb, W, V, Ta, Mo, Si, Al, Zr, Hf, P, C and Zn. This is useful for anisotropic resin-bonded magnet with high magnetic properties.
    Type: Grant
    Filed: November 2, 2001
    Date of Patent: March 25, 2003
    Assignee: Hitachi Metals, Ltd.
    Inventors: Minoru Endoh, Yasuto Nozawa, Katsunori Iwasaki, Shigeho Tanigawa, Masaaki Tokunaga
  • Patent number: RE40524
    Abstract: The magnet powder-resin compound particles substantially composed of rare earth magnet powder and a binder resin are in such a round shape that a ratio of the longitudinal size a to the transverse size b (a/b) is more than 1.00 and 3 or less, and that an average particle size defined by (a/b)/2 is 50-300 ?m. They are produced by charging a mixture of rare earth magnet powder and a binder resin into an extruder equipped with nozzle orifices each having a diameter of 300 ?m or less; extruding the mixture while blending under pressure though the nozzle orifices to form substantially cylindrical, fine pellets; and rounding the pellets by rotation.
    Type: Grant
    Filed: July 20, 2004
    Date of Patent: September 30, 2008
    Assignee: Hitachi Metals, Ltd.
    Inventors: Katsunori Iwasaki, Kazunori Tabaru