Patents by Inventor Kiyoshi Ito

Kiyoshi Ito 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: 20060261188
    Abstract: A chemical diffusion apparatus (1) comprises a first tank (2) filled up with a volatile chemical A such as a communication disturbance agent and a second tank (3) filled up with a volatile chemical B. The chemicals A and B are sucked by means of a discharge volume variable pump (6) to be discharged onto an evaporating dish (8) through a discharge tube (7). A mixed chemical C discharged onto the evaporating dish 8 is naturally diffused in the air. A control circuit (9) controls drive of the pump (6). An input side of the control circuit (9) is connected to a timer (11) and an environment parameter detecting means such as a temperature sensor (12), an illumination sensor (13), a wind direction sensor (14) and a wind velocity sensor (15). The control circuit (9) controls discharge and discharge volume of the mixed chemical C from the pump (6) on the basis of detecting results from the respective sensors in accordance with a control program.
    Type: Application
    Filed: February 19, 2004
    Publication date: November 23, 2006
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Kiyoshi Ito, Manabu Yamada
  • Patent number: 7108799
    Abstract: An electromagnetic wave absorber is formed of an Mn—Zn ferrite including: a spinel primary phase which contains 40.0 to 49.9 mol % Fe2O3, 4.0 to 26.5 mol % ZnO, and the remainder consisting of MnO; and a secondary phase which contains CaO as a base component. In the ferrite, the spinel primary phase accounts for 50.0 to 99.0% of the aggregate mass of the spinel primary phase and the secondary phase.
    Type: Grant
    Filed: January 30, 2004
    Date of Patent: September 19, 2006
    Assignee: Minebea Co., Ltd.
    Inventors: Osamu Kobayashi, Kiyoshi Ito, Masashi Norizuki
  • Patent number: 7101488
    Abstract: An electromagnetic wave absorber is formed of an Mn—Zn ferrite including: a spinel primary phase which contains 40.0 to 49.9 mol % Fe2O3, 4.0 to 26.5 mol % ZnO, 0.1 to 4.0 mol % TiO2 and/or SnO2, and the remainder consisting of MnO; and a secondary phase which contains CaO as a base component. In the ferrite, the mass of the spinel primary phase accounts for 50.0 to 99.0% of the aggregate mass of the spinel primary phase and the secondary phase.
    Type: Grant
    Filed: January 30, 2004
    Date of Patent: September 5, 2006
    Assignee: Minebea Co., Ltd.
    Inventors: Osamu Kobayashi, Kiyoshi Ito, Masashi Norizuki
  • Publication number: 20060094869
    Abstract: A desired isomer is selectively prepared by phosphorolyzing and isomerizing an anomer mixture of a 1-phosphorylated saccharide derivative while crystallizing one of the isomers to displace the equilibrium. Furthermore, using the action of a nucleoside phosphorylase, a nucleoside is prepared from the 1-phosphorylated saccharide derivative obtained and a base with improved stereoselectivity and a higher yield. This process is an anomer-selective process for preparing a 1-phosphorylated saccharide derivative and a nucleoside.
    Type: Application
    Filed: November 28, 2005
    Publication date: May 4, 2006
    Applicant: MITSUI CHEMICALS, INC.
    Inventors: Hironori Komatsu, Hirokazu Awano, Nobuyuki Fukazawa, Kiyoshi Ito, Ichirou Ikeda, Tadashi Araki, Takeshi Nakamura, Tamotsu Asano, Junya Fujiwara, Tomoyuki Ando, Katsutoshi Tsuchiya, Kyoko Maruyama, Hideki Umetani, Takahiro Yamauchi, Hitoki Miyake
  • Patent number: 7038039
    Abstract: A desired isomer is selectively prepared by phosphorolyzing and isomerizing an anomer mixture of a 1-phosphorylated saccharide derivative while crystallizing one of the isomers to displace the equilibrium. Furthermore, using the action of a nucleoside phosphorylase, a nucleoside is prepared from the 1-phosphorylated saccharide derivative obtained and a base with improved stereoselectivity and a higher yield. This process is an anomer-selective process for preparing a 1-phosphorylated saccharide derivative and a nucleoside.
    Type: Grant
    Filed: February 13, 2001
    Date of Patent: May 2, 2006
    Assignee: Mitsui Chemicals, Inc.
    Inventors: Hironori Komatsu, Hirokazu Awano, Nobuyuki Fukazawa, Kiyoshi Ito, Ichirou Ikeda, Tadashi Araki, Takeshi Nakamura, Tamotsu Asano, Junya Fujiwara, Tomoyuki Ando, Katsutoshi Tsuchiya, Kyoko Maruyama, Hideki Umetani, Takahiro Yamauchi, Hitoki Miyake
  • Publication number: 20060055487
    Abstract: A bead type noise filter according to the present invention is constituted by a magnetic core 1 formed of Mn—Zn ferrite having its resistivity increased so as to improve a high frequency characteristic, and having its permittivity lowered, and thereby can successfully suppress radiation noises without distorting the waveform of transmission signals. The magnetic core 1 constituting the bead type noise filter is formed of a high resistivity soft magnetic material, is shaped cylindrical, and has at least one through-hole 1a so as to form a closed magnetic path, and the bead type noise filter is attached on a signal line 2 such that the signal line 2 is inserted through the through-hole 1a. The soft magnetic material has a real part of complex relative permittivity ranging from 1,000 up to 20,000 at 1 kHz and 50 or lower at 1 MHz, and has a resistivity of 150 ?m or higher.
    Type: Application
    Filed: September 22, 2003
    Publication date: March 16, 2006
    Applicant: MINEBEA CO., LTD.
    Inventors: Osamu Kobayashi, Osamu Yamada, Yukio Suzuki, Kiyoshi Ito, Mayuka Shirai
  • Publication number: 20060048306
    Abstract: The present invention provides a method of using a rice peroxidase, particularly rice hull peroxidase, having excellent reactivity at high temperatures and reactivity. Dyed substances (dyes, etc.) are decomposed (discolored/bleached) in a washing liquor by means of a rice peroxidase. More particularly, in the case of washing or rinsing a portion with another portion in the dyed fabric with the same washing liquor, the transfer of textile dyes from the dyed fabric to the other fabric is inhibited. Further, textile dyes in a solution or a dispersion solution are bleached. The invention allows excellent prevention of dye transfer in washing or rinsing and thus provides a method better than bleaching textile dyes in a solution or a dispersion solution, and further a composition for prevention of dye transfer and for bleaching.
    Type: Application
    Filed: September 24, 2003
    Publication date: March 9, 2006
    Applicant: MITSUI CHEMICALS, INC.
    Inventors: Miyuki Morita, Kiyoshi Ito
  • Patent number: 6991742
    Abstract: A Mn—Zn ferrite and a coil component are provided which obtains a low core loss in a frequency band above 1 MHz and even above 5 MHz and which can duly function in such a high frequency band. The Mn—Zn contains as basic components 44.00 to 50.0 mol % Fe2O3 (50 mol % excluded), 4.0 to 26.5 mol % ZnO, and remainder MnO, and has a dielectric loss tan ? of 0.3 or less at 1 kHz, and a complex relative permittivity ? of 1,000 or less at 1 MHz, whereby a core loss decreases in the high frequency band.
    Type: Grant
    Filed: August 8, 2002
    Date of Patent: January 31, 2006
    Assignee: Minebea Co., Ltd.
    Inventors: Kiyoshi Ito, Osamu Kobayashi, Yukio Suzuki
  • Patent number: 6984338
    Abstract: An Mn—Zn ferrite includes base components of 44.0 to 49.8 mol % Fe2O3, 4.0 to 26.5 mol % ZnO, 0.8 mol % or less Mn2O3, and the remainder consisting of MnO, and contains 0.20 (0.20 excluded) to 1.00 mass % CaO as additive. Since the Mn—Zn ferrite contains less than 50.0 mol % Fe2O3 and a limited amount (0.8 mol % or less) of Mn2O3, an abnormal grain growth does not occur even if CaO content is more than 0.20 mass %, and a high electrical resistance can be gained thereby realizing an excellent soft magnetism in a high frequency band such as 1 MHz.
    Type: Grant
    Filed: January 28, 2004
    Date of Patent: January 10, 2006
    Assignee: Minebea Co., Ltd.
    Inventors: Osamu Kobayashi, Osamu Yamada, Kiyoshi Ito
  • Patent number: 6984337
    Abstract: An Mn—Zn ferrite includes base components of 44.0 to 49.8 mol % Fe2O3, 4.0 to 26.5 mol % ZnO, at least one of 0.1 to 4.0 mol % TiO2 and SnO2, 0.5 mol % or less Mn2O3, and the remainder consisting of MnO, and contains 0.20 (0.20 excluded) to 1.00 mass % CaO as additive. Since the Mn—Zn ferrite contains less than 50 mol % Fe2O3 and a limited amount (0.5 mol % or less) of Mn2O3, an abnormal grain growth does not occur even if CaO content is more than 0.20 mass %, and a high electrical resistance can be gained. And, since an appropriate amount of TiO2 and/or SnO2 is contained, an initial permeability is kept adequately high, whereby an excellent soft magnetism can be achieved in a high frequency band such as 1 MHz.
    Type: Grant
    Filed: January 28, 2004
    Date of Patent: January 10, 2006
    Assignee: Minebea Co., Ltd.
    Inventors: Osamu Kobayashi, Osamu Yamada, Kiyoshi Ito
  • Publication number: 20050162234
    Abstract: A signal discriminator is provided which leverages variation of permittivity of Mn—Zn-based ferrite. The signal discriminator comprises a soft magnetic material which has a capacitive reactance C, and which has its complex relative permittivity varying with frequency such that the real part ?? of the complex relative permittivity is large in a low frequency domain and small in a high frequency domain. In the reactance component X2, the capacitive reactance C is not negligible with respect to the inductive reactance L in a low frequency domain, in consequence of which the value of the reactance component X2 as a parallel circuit of the capacitive reactance C and the inductive reactance L is caused to decrease, and the influence of the capacitive reactance C is decreased in a high frequency domain.
    Type: Application
    Filed: September 22, 2003
    Publication date: July 28, 2005
    Inventors: Osamu Kobayashi, Osamu Yamada, Yukio Suzuki, Kiyoshi Ito, Mayuka Shirai
  • Publication number: 20050074563
    Abstract: It is an object of the present invention to provide an alkali-soluble maleimide-based copolymer excellent in resistance for thermally yellowing, high in hardness, excellent in solubility in solvents and capable of readily forming uniform coat films and, in addition, capable of being satisfactorily dissolved in alkali water when remaining uncured, as well as a pigment dispersion composition comprising such copolymer and an ionizing radiation-curable resin composition comprising such copolymer. Another object of the present invention is to provide a color filter and a liquid crystal display which are formed by using the ionizing radiation-curable resin composition.
    Type: Application
    Filed: September 24, 2002
    Publication date: April 7, 2005
    Inventors: Masahiro Tatsuzawa, Kiyoshi Ito, Shinji Hayashi, Shunsuke Sega, Tomonobu Sumino, Minoru Yamaguchi, Tomomasa Kaneko, Kenichi Ueda
  • Patent number: 6849432
    Abstract: The invention is a process for continuously producing an amide compound by reacting a microorganism fungus body containing nitrile hydratase or a processed product of the microorganism fungus body with a nitrile compound in an aqueous medium, characterized in that after contacting said fungus body or said processed product of said fungus body with said nitrile compound in said aqueous medium, a reaction solution thus obtained is further subjected to reaction under conditions having a plug flow region, and according to the invention, an amide compound aqueous solution of a high concentration a high purity can be easily obtained in an extremely high conversion rate of a nitrile compound without a condensation process.
    Type: Grant
    Filed: March 23, 2001
    Date of Patent: February 1, 2005
    Assignee: Mitsui Chemicals, Inc.
    Inventors: Takeya Abe, Kiyoshi Ito, Kenju Sasaki, Seiichi Watanabe, Toshihisa Tachibana, Tamotsu Asano
  • Publication number: 20040219646
    Abstract: In reacting pentose-1-phosphoric acid with a nucleic acid base or a nucleic acid base analogue in an aqueous reaction medium in the presence of a metal cation to produce a nucleoside compound, the timing or method of addition of at least one of these components to the aqueous reaction medium is varied; thereby, a nucleoside compound can be produced at a high yield efficiently without inviting the high viscosity or solidification of the reaction mixture, even when the above components are used in such amounts that the reaction mixture becomes highly viscous or is solidified when the components are used without the above variation of the addition timing or method. Thus, there can be provided a process for producing a nucleoside compound, which comprises a step of reacting pentose-1-phosphoric acid with a nucleic acid base or a nucleic acid base analogue in the presence of nucleoside phosphorylase activity, which gives a nucleoside compound at an improved conversion, and which has wide applicability.
    Type: Application
    Filed: May 5, 2003
    Publication date: November 4, 2004
    Inventors: Tadashi Araki, Ichiro Ikeda, Katsuyuki Takahashi, Kiyoshi Ito, Tamotsu Asano, Seiya Nikumaru, Takeshi Nakamura, Hiroki Ishibashi, Kiyoteru Nagahara, Yasushi Fukuiri
  • Patent number: 6798329
    Abstract: In an inductor comprising an open magnetic path formed by a soft magnetic material and a winding provided around the open magnetic path, the soft magnetic material has its relative complex dielectric constant varying according to a frequency. In the soft magnetic material, the imaginary part of the relative complex dielectric constant is greater than the real part thereof in a high-frequency band equal higher than the frequency of the electric signal flowing in the winding. Specifically, the soft magnetic material has a resistivity of 150 &OHgr;m, has a real part of the relative complex dielectric constant, ranging from 1,000 to 20,000 at 1 kHz and 50 or less at 1 MHz, and the imaginary part is greater than the real part at 1 MHz.
    Type: Grant
    Filed: April 23, 2003
    Date of Patent: September 28, 2004
    Assignee: Minebea Co., Ltd.
    Inventors: Osamu Kobayashi, Osamu Yamada, Yukio Suzuki, Kiyoshi Ito, Mayuka Shirai
  • Publication number: 20040185289
    Abstract: An electromagnetic wave absorber is formed of an Mn—Zn ferrite including: a spinel primary phase which contains 40.0 to 49.9 mol % Fe2O3, 4.0 to 26.5 mol % ZnO, and the remainder consisting of MnO; and a secondary phase which contains CaO as a base component. In the ferrite, the spinel primary phase accounts for 50.0 to 99.0% of the aggregate mass of the spinel primary phase and the secondary phase.
    Type: Application
    Filed: January 30, 2004
    Publication date: September 23, 2004
    Applicant: MINEBA CO., LTD.
    Inventors: Osamu Kobayashi, Kiyoshi Ito, Masashi Norizuki
  • Publication number: 20040183711
    Abstract: An electromagnetic wave absorber is formed of an Mn—Zn ferrite including: a spinel primary phase which contains 40.0 to 49.9 mol % Fe2O3, 4.0 to 26.5 mol % ZnO, 0.1 to 4.0 mol % TiO2 and/or SnO2, and the remainder consisting of MnO; and a secondary phase which contains CaO as a base component. In the ferrite, the mass of the spinel primary phase accounts for 50.0 to 99.0% of the aggregate mass of the spinel primary phase and the secondary phase.
    Type: Application
    Filed: January 30, 2004
    Publication date: September 23, 2004
    Applicant: MINEBEA CO., LTD.
    Inventors: Osamu Kobayashi, Kiyoshi Ito, Masashi Norizuki
  • Publication number: 20040183049
    Abstract: An Mn—Zn ferrite includes base components of 44.0 to 49.8 mol % Fe2O3, 4.0 to 26.5 mol % ZnO, 0.8 mol % or less Mn2O3, and the remainder consisting of MnO, and contains 0.20 (0.20 excluded) to 1.00 mass % CaO as additive. Since the Mn—Zn ferrite contains less than 50.0 mol % Fe2O3 and a limited amount (0.8 mol % or less) of Mn2O3, an abnormal grain growth does not occur even if CaO content is more than 0.20 mass %, and a high electrical resistance can be gained thereby realizing an excellent soft magnetism in a high frequency band such as 1 MHz.
    Type: Application
    Filed: January 28, 2004
    Publication date: September 23, 2004
    Applicant: Minebea Co., Ltd.
    Inventors: Osamu Kobayashi, Osamu Yamada, Kiyoshi Ito
  • Publication number: 20040183048
    Abstract: An Mn—Zn ferrite includes base components of 44.0 to 49.8 mol % Fe2O3, 4.0 to 26.5 mol % ZnO, at least one of 0.1 to 4.0 mol % TiO2 and SnO2, 0.5 mol % or less Mn2O3, and the remainder consisting of MnO, and contains 0.20 (0.20 excluded) to 1.00 mass % CaO as additive. Since the Mn—Zn ferrite contains less than 50 mol % Fe2O3 and a limited amount (0.5 mol % or less) of Mn2O3, an abnormal grain growth does not occur even if CaO content is more than 0.20 mass %, and a high electrical resistance can be gained. And, since an appropriate amount of TiO2 and/or SnO2 is contained, an initial permeability is kept adequately high, whereby an excellent soft magnetism can be achieved in a high frequency band such as 1 MHz.
    Type: Application
    Filed: January 28, 2004
    Publication date: September 23, 2004
    Applicant: MINEBEA CO., LTD.
    Inventors: Osamu Kobayashi, Osamu Yamada, Kiyoshi Ito
  • Patent number: 6767478
    Abstract: The Mn—Zn ferrite of the present invention contains basic components of 44.0 to 50.0 mol % (50.0 mol % is excluded) Fe2O3, 4.0 to 26.5 mol % ZnO and the remainder MnO, and has a real part &egr;′ of complex relative permittivity of 20,000 or less at 1 kHz and 50 or less at 1 MHz, thereby maintaining initial permeability in a wide frequency band, showing a low stray capacitance with a coil provided, and ensuring an excellent impedance in a wide frequency band. And a coil using the Mn—Zn ferrite as a magnetic core is also provided.
    Type: Grant
    Filed: August 2, 2002
    Date of Patent: July 27, 2004
    Assignee: Minebea Co., Ltd.
    Inventors: Kiyoshi Ito, Osamu Kobayashi, Yukio Suzuki