Patents by Inventor Hideyuki Baba

Hideyuki Baba 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: 20200006382
    Abstract: A semiconductor memory device includes a conducting layer and an insulating layer that are disposed above a semiconductor substrate, a plurality of pillars that extend in a direction which crosses a surface of the semiconductor substrate, and a plate that is disposed between the plurality of pillars and extends in the same direction as the pillars. A surface of the plate, which faces the pillars, has convex portions and non-convex portions.
    Type: Application
    Filed: September 13, 2019
    Publication date: January 2, 2020
    Inventors: Toshifumi MINAMI, Atsuhiro SATO, Keisuke YONEHAMA, Yasuyuki BABA, Hiroshi SHINOHARA, Hideyuki KAMATA, Teppei HIGASHITSUJI
  • Patent number: 10461093
    Abstract: A semiconductor memory device includes a conducting layer and an insulating layer that are disposed above a semiconductor substrate, a plurality of pillars that extend in a direction which crosses a surface of the semiconductor substrate, and a plate that is disposed between the plurality of pillars and extends in the same direction as the pillars. A surface of the plate, which faces the pillars, has convex portions and non-convex portions.
    Type: Grant
    Filed: February 12, 2018
    Date of Patent: October 29, 2019
    Assignee: TOSHIBA MEMORY CORPORATION
    Inventors: Toshifumi Minami, Atsuhiro Sato, Keisuke Yonehama, Yasuyuki Baba, Hiroshi Shinohara, Hideyuki Kamata, Teppei Higashitsuji
  • Publication number: 20080220963
    Abstract: A method for producing sintered silicon nitride, including preparing a slurry from a base powder containing a silicon nitride powder and a sintering aid, the base powder having a particle size (D50) of 0.3 to 1 ?m; obtaining an SD powder from the slurry by a spray dryer process; and feeding the SD powder into a forming die and firing the powder under a compaction pressure of 3 ton/cm2 or more thereby obtaining sintered silicon nitride. The present invention provides a method for producing sintered silicon nitride with a higher degree of safety of the working environment.
    Type: Application
    Filed: February 27, 2008
    Publication date: September 11, 2008
    Applicant: NGK Insulators, Ltd.
    Inventors: Takahiro Takahashi, Kazuhiro Nobori, Naohito Yamada, Hideyuki Baba
  • Patent number: 7122111
    Abstract: A glucose sensor system comprising the steps of using as a sample discriminating parameter a ratio (I/?I) of a measured current value I to the time-differential value of the current value ?I, defining a discrimination function that discriminates whether a sample is blood or control fluid and uses the discriminating parameter as an independent variable, quantitating as a discriminating index a numeric value obtained by substituting a discriminating parameter value into this discrimination function, and automatically discriminating, based on this index, whether the sample is blood or a control fluid, whereby a kind of the sample can be automatically quantitated by measuring electric current when a sensor system is used for quantitating the concentration of an analysis object in the sample.
    Type: Grant
    Filed: June 29, 2004
    Date of Patent: October 17, 2006
    Assignees: Matsushita Electric Industrial Co., Ltd., Arkray, Inc.
    Inventors: Hiroyuki Tokunaga, Shoji Miyazaki, Hideyuki Baba, Yoichi Inoue, Kazuo Iketaki, Katsumi Hamamoto
  • Patent number: 7122698
    Abstract: The present invention provides a process for more efficiently producing an ?-hydroxycarboxylic acid ester wherein side reactions due to the ?-hydroxycarboxylic acid ester are inhibited or prevented in comparison with prior art production processes. The invention provides a process for producing an ?-hydroxycarboxylic acid ester comprising Steps 1 to 3: Step 1. reacting, in the presence of oxygen, (i) a 1,2-diol with a 1,2-diol or (ii) a 1,2-diol with an alcohol to obtain a reaction product containing an ?-hydroxycarboxylic acid ester; Step 2. separating the ?-hydroxycarboxylic acid ester from the reaction product obtained in Step 1 by distillation under reduced pressure; and Step 3. feeding Step 1 with a mixture obtained by partially or entirely removing water from the reaction product, wherein the mixture contains an unreacted 1,2-diol and/or alcohol.
    Type: Grant
    Filed: October 8, 2003
    Date of Patent: October 17, 2006
    Assignee: Nippon Shokubai Co., Ltd.
    Inventors: Hiroshi Yoshida, Hideaki Tsuneki, Toshio Hayashi, Hideyuki Baba, Takahiro Inagaki, Satoshi Nakagawa, Yukihiko Kakimoto, Ritsuo Kitada, Kohei Umehara
  • Publication number: 20060079711
    Abstract: A method of producing a diol derivative efficiently and to high purity is provided. Specifically, the present invention relates to a method of producing a diol derivative having, as a fundamental step, a step of obtaining an ?-hydroxycarboxylic acid ester by reacting (i) one or more 1,2-diols or (ii) a 1,2-diol and a primary alcohol as starting material(s) with oxygen in the presence of a catalyst comprising metal loaded on a carrier, further hydrolyzing the ?-hydroxycarboxylic acid ester to obtain ?-hydroxycarboxylic acid, and subjecting the ?-hydroxycarboxylic acid to polycondensation.
    Type: Application
    Filed: November 30, 2005
    Publication date: April 13, 2006
    Inventors: Toshio Hayashi, Hideyuki Baba
  • Patent number: 7005048
    Abstract: The present invention provides a high-performance glucose sensor having excellent storage stability and an improved response characteristic. This sensor comprises: an electrically insulating base plate; an electrode system including at least a working electrode and a counter electrode formed on the base plate; and a reaction layer containing at least pyrrolo-quinoline quinone dependent glucose dehydrogenase, formed in contact with or in the vicinity of the electrode system, and the reaction layer contains at least one kind of additive selected from the group consisting of gluconic acid and salts thereof.
    Type: Grant
    Filed: October 2, 2000
    Date of Patent: February 28, 2006
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Motokazu Watanabe, Keiko Yugawa, Toshihiko Yoshioka, Shiro Nankai, Junko Nakayama, Shoji Miyazaki, Hideyuki Baba
  • Patent number: 7005536
    Abstract: A method of producing a diol derivative efficiently and to high purity is provided. Specifically, the present invention relates to a method of producing a diol derivative having, as a fundamental step, a step of obtaining an ?-hydroxycarboxylic acid ester by reacting (i) one or more 1,2-diols or (ii) a 1,2-diol and a primary alcohol as starting material(s) with oxygen in the presence of a catalyst comprising metal loaded on a carrier.
    Type: Grant
    Filed: July 11, 2003
    Date of Patent: February 28, 2006
    Assignee: Nippon Shokubai Co., Ltd.
    Inventors: Toshio Hayashi, Hideyuki Baba
  • Publication number: 20050090686
    Abstract: The present invention provides a process for more efficiently producing an ?-hydroxycarboxylic acid ester wherein side reactions due to the ?-hydroxycarboxylic acid ester are inhibited or prevented in comparison with prior art production processes. The invention provides a process for producing an ?-hydroxycarboxylic acid ester comprising Steps 1 to 3: Step 1. reacting, in the presence of oxygen, (i) a 1,2-diol with a 1,2-diol or (ii) a 1,2-diol with an alcohol to obtain a reaction product containing an ?-hydroxycarboxylic acid ester; Step 2. separating the ?-hydroxycarboxylic acid ester from the reaction product obtained in Step 1 by distillation under reduced pressure; and Step 3. feeding Step 1 with a mixture obtained by partially or entirely removing water from the reaction product, wherein the mixture contains an unreacted 1,2-diol and/or alcohol.
    Type: Application
    Filed: October 8, 2003
    Publication date: April 28, 2005
    Applicant: NIPPON SHOKUBAI CO., LTD.
    Inventors: Hiroshi Yoshida, Hideaki Tsuneki, Toshio Hayashi, Hideyuki Baba, Takahiro Inagaki, Satoshi Nakagawa, Yukihiko Kakimoto, Ritsuo Kitada, Kohei Umehara
  • Patent number: 6824670
    Abstract: A glucose sensor system comprising the steps of using as a sample discriminating parameter a ratio (I/&Dgr;I) of a measured current value I to the time-differential value of the current value &Dgr;I, defining a discrimination function that discriminates whether a sample is blood or control fluid and uses the discriminating parameter as an independent variable, quantitating as a discriminating index a numeric value obtained by substituting a discriminating parameter value into this discrimination function, and automatically discriminating, based on this index, whether the sample is blood or a control fluid, whereby a kind of the sample can be automatically quantitated by measuring electric current when a sensor system is used for quantitating the concentration of an analysis object in the sample.
    Type: Grant
    Filed: October 29, 2001
    Date of Patent: November 30, 2004
    Assignees: Matsushita Electric Industrial Co. Ltd., Arkray, Inc.
    Inventors: Hiroyuki Tokunaga, Shoji Miyazaki, Hideyuki Baba, Yoichi Inoue, Kazuo Iketaki, Katsumi Hamamoto
  • Publication number: 20040235178
    Abstract: A glucose sensor system comprising the steps of using as a sample discriminating parameter a ratio (I/&Dgr;I) of a measured current value I to the time-differential value of the current value &Dgr;I, defining a discrimination function that discriminates whether a sample is blood or control fluid and uses the discriminating parameter as an independent variable, quantitating as a discriminating index a numeric value obtained by substituting a discriminating parameter value into this discrimination function, and automatically discriminating, based on this index, whether the sample is blood or a control fluid, whereby a kind of the sample can be automatically quantitated by measuring electric current when a sensor system is used for quantitating the concentration of an analysis object in the sample.
    Type: Application
    Filed: June 29, 2004
    Publication date: November 25, 2004
    Applicants: Matsushita Electric Industrial Co., Ltd., Arkray, Inc.
    Inventors: Hiroyuki Tokunaga, Shoji Miyazaki, Hideyuki Baba, Yoichi Inoue, Kazuo Iketaki, Katsumi Hamamoto
  • Patent number: 6773564
    Abstract: The present invention provides a high performance glucose sensor which can demonstrate high stability against preservation and produces only a low blank value. The glucose sensor comprises an electrically insulating base plate, an electrode system formed on the base plate, and a reaction layer which is formed in contact with or in the vicinity of the electrode system and contains at least a glucose dehydrogenase whose coenzyme is pyrrolo-quinoline quinone, the reaction layer further containing an additive such as phthalic acid.
    Type: Grant
    Filed: September 28, 1999
    Date of Patent: August 10, 2004
    Assignees: Matsushita Electric Industrial Co., Ltd., Toyobo Co., Ltd.
    Inventors: Keiko Yugawa, Toshihiko Yoshioka, Shiro Nankai, Junko Iwata, Shoji Miyazaki, Hideyuki Baba, Seiji Takeshima
  • Publication number: 20040138409
    Abstract: A method of producing a diol derivative efficiently and to high purity is provided. Specifically, the present invention relates to a method of producing a diol derivative having, as a fundamental step, a step of obtaining an &agr;-hydroxycarboxylic acid ester by reacting (i) one or more 1,2-diols or (ii) a 1,2-diol and a primary alcohol as starting material(s) with oxygen in the presence of a catalyst comprising metal loaded on a carrier.
    Type: Application
    Filed: July 11, 2003
    Publication date: July 15, 2004
    Inventors: Toshio Hayashi, Hideyuki Baba
  • Publication number: 20020139692
    Abstract: A glucose sensor system comprising the steps of using as a sample discriminating parameter a ratio (I/&Dgr;I) of a measured current value I to the time-differential value of the current value &Dgr;I, defining a discrimination function that discriminates whether a sample is blood or control fluid and uses the discriminating parameter as an independent variable, quantitating as a discriminating index a numeric value obtained by substituting a discriminating parameter value into this discrimination function, and automatically discriminating, based on this index, whether the sample is blood or a control fluid, whereby a kind of the sample can be automatically quantitated by measuring electric current when a sensor system is used for quantitating the concentration of an analysis object in the sample.
    Type: Application
    Filed: October 29, 2001
    Publication date: October 3, 2002
    Inventors: Hiroyuki Tokunaga, Shoji Miyazaki, Hideyuki Baba, Yoichi Inoue, Kazuo Iketaki, Katsumi Hamamoto
  • Patent number: 6379805
    Abstract: A low temperature-fired porcelain article includes a barium component in an amount of 40 to 65 wt % when calculated as BaO, a silicon component in an amount of 25 to 46 wt % when calculated as SiO2, an aluminum component in an amount of 0.1 to 20 wt % when calculated as Al2O3, a boron component in an amount of 0.3 to 1.5 wt % when calculated as B2O3, and a zinc component in an amount of 0.5 to 20 wt % when calculated as ZnO, optionally also a chromium component in an amount of 0.5 to 3.5 wt % when calculated as Cr2O3 wherein the porcelain article has a dielectric constant ∈r of not more than 10, a quality coefficient Q of not less than 2500, and preferably has an absolute value of a temperature coefficient &tgr;f of the resonance frequency of not more than 30 ppm/° C.
    Type: Grant
    Filed: January 19, 2000
    Date of Patent: April 30, 2002
    Assignee: NGK Insulators, Ltd.
    Inventors: Takeshi Oobuchi, Yasunori Kouda, Hideyuki Baba
  • Patent number: 6169207
    Abstract: The invention provides a process for producing dialkanolamines through amination of alkylene oxide with ammonia at liquid phase, in which side formation of trialkanolamines is inhibited and dialkanolamines can be produced with high selectivity and high efficiency. Said process is carried out in the presence of a catalyst which possesses such reaction characteristics that render the rate constant &agr; of the reaction between ammonia and alkylene oxide not less than 0.10, when the reaction rate constant between monoalkanolamine and alkylene oxide is 1, and the rate constant &bgr; of the reaction between dialkanolamine and alkylene oxide not more than 0.7, when the reaction rate constant between monoalkanolamine and alkylene oxide is 1.
    Type: Grant
    Filed: March 12, 1999
    Date of Patent: January 2, 2001
    Assignee: Nippon Shokubai Co Ltd
    Inventors: Hideaki Tsuneki, Atusi Moriya, Hideyuki Baba
  • Patent number: 6037489
    Abstract: A method for purifying glyoxylates includes (1) a coarse distillation process in which a crude glyoxylate in which water coexists is, in a film form, continuously subjected to coarse distillation, and (2) an azeotropic dehydration process in which the crude glyoxylate purified through the coarse distillation process is subjected to azeotropic dehydration in the presence of an azeotropic agent such as propyl acetate. By this method, high-purity glyoxylates can be efficiently and easily obtained at lower costs.
    Type: Grant
    Filed: April 10, 1998
    Date of Patent: March 14, 2000
    Assignee: Nippon Shokubai Co., Ltd.
    Inventors: Hideyuki Baba, Satoru Miura, Masanori Nonoguchi, Noboru Saito
  • Patent number: 5650062
    Abstract: The biosensor of this invention can quantify a substrate in a sample liquid by electrochemically measuring the amount of an electron acceptor that has been reduced by electrons generated in a reaction between the substrate and an oxidoreductase. The biosensor has an electrically insulating substrate and an electrode system formed on the substrate including a working electrode, a counter electrode and a third electrode used for detecting a liquid junction. The third electrode can be used merely for detecting a liquid junction, or can be used as both a reference electrode and a liquid junction detecting electrode.
    Type: Grant
    Filed: September 12, 1995
    Date of Patent: July 22, 1997
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Shin Ikeda, Toshihiko Yoshioka, Shiro Nankai, Haruhiro Tsutsumi, Hideyuki Baba, Yoshinobu Tokuno, Syoji Miyazaki
  • Patent number: 5582697
    Abstract: The biosensor of this invention can quantify a substrate in a sample liquid by electrochemically measuring the amount of an electron acceptor that has been reduced by electrons generated in a reaction between the substrate and an oxidoreductase. The biosensor has an electrically insulating substrate and an electrode system formed on the substrate including a working electrode, a counter electrode and a third electrode used for detecting a liquid junction. The third electrode can be used merely for detecting a liquid junction, or can be used as both a reference electrode and a liquid junction detecting electrode.
    Type: Grant
    Filed: April 20, 1995
    Date of Patent: December 10, 1996
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Shin Ikeda, Toshihiko Yoshioka, Shiro Nankai, Haruhiro Tsutsumi, Hideyuki Baba, Yoshinobu Tokuno, Syoji Miyazaki
  • Patent number: 5565085
    Abstract: A biosensor for quantifying a specific compound has a reaction layer containing at least an enzyme, and an electrode system having a working electrode and a counter electrode formed on an insulating base plate; the biosensor detects the specific compound contained in a sample on the basis of an electrochemical response. In quantifying, the working electrode and the counter electrode are short-circuited before the voltage is applied therebetween. The short-circuiting eliminates measuring errors that may occur due to nonuniform dissolution of the reaction layer in a sample, and achieves highly reliable quantification of a specific compound.
    Type: Grant
    Filed: April 25, 1995
    Date of Patent: October 15, 1996
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Shin Ikeda, Toshihiko Yoshioka, Shiro Nankai, Haruhiro Tsutsumi, Hideyuki Baba, Yoshinobu Tokuno