Patents by Inventor Tadashi Araki

Tadashi Araki 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: 20200392338
    Abstract: Provided is a room temperature moisture-curable silicone gel composition containing: (A) diorganopolysiloxane, both terminals of which are blocked by silanol groups; (B) hydrolysable organosilicon compound represented by Formula (2) and/or a partial hydrolysate thereof (where R2 is a monovalent hydrocarbon group, R3 is an alkyl group or a cycloalkyl group, and a is 2 or 3.); (C) a curing catalyst; and (D) a heat-resistant aid containing a homogeneous mixture of (D-a), (D-b), and (D-c) (where (D-a) is organopolysiloxane having a viscosity of 10-10,000 mPa·s at 25° C., (D-b) is carboxylate of cerium, and (D-c) is a titanium compound and/or a partial hydrolytic condensate thereof). This room temperature moisture-curable silicone gel composition can be a silicone gel cured product which has a small variation rate of low-stress properties evaluated by the index such as penetration even under heat-resistant conditions exceeding 230° C. and which has excellent heat-resistance.
    Type: Application
    Filed: November 28, 2018
    Publication date: December 17, 2020
    Applicant: SHIN-ETSU CHEMICAL CO., LTD.
    Inventors: Tadashi ARAKI, Sawako SHODA, Takahiro YAMAGUCHI, Tomoki AKIBA
  • Patent number: 10858518
    Abstract: Provided is a curable organopolysiloxane composition from which highly heat-resistant cured products can be obtained, the curable organopolysiloxane composition comprising: (A) 100 parts by mass of a novel organopolysiloxane represented by formula (1) (R1 is an alkyl group or an alkoxy substituted alkyl group having 1 to 6 carbon atoms, R2 is a group selected from an alkyl group having 1 to 20 carbon atoms, an aryl group having 6 to 20 carbon atoms, and a group in which a portion of the hydrogen atoms of those groups is substituted with a halogen atom, Ar is an arylene group having 6 carbon atoms or more, a is 1 to 1,000, b is 1 to 5,000, and n is 1 to 3, the total of n in an unsubstituted or substituted alkoxysilyl group on both ends of the molecular chain being 3 or more); and (B) 0.01 to 10 parts by mass of a curing catalyst. Also provided are electrical and electronic components, a vehicle oil seal, a building sealant, etc. which use the cured product of the composition.
    Type: Grant
    Filed: November 6, 2017
    Date of Patent: December 8, 2020
    Assignee: SHIN-ETSU CHEMICAL CO., LTD.
    Inventors: Tomoki Akiba, Tadashi Araki, Takafumi Sakamoto
  • Patent number: 10662331
    Abstract: Provided are: a silicone gel composition providing a silicone gel cured product having excellent heat resistance at high temperatures; and a cured product (silicone gel) thereof. This silicone gel composition is an addition reaction-curable silicone gel composition containing, with respect to the total (mass) of the composition, 1-1,000 ppm of a niobium carboxylate and/or nickel carboxylate represented by the following formula (3). (R3COO)fM??(3) (In the formula, R3 is a homogeneous or heterogeneous monovalent hydrocarbon group, M is at least one metal selected from among nickel and niobium, and f is 2 when M is nickel and 4 or 5 when M is niobium).
    Type: Grant
    Filed: May 23, 2016
    Date of Patent: May 26, 2020
    Assignee: SHIN-ETSU CHEMICAL CO., LTD.
    Inventor: Tadashi Araki
  • Publication number: 20200149079
    Abstract: Provided are a recombinant microorganism comprising: a gene encoding a pyridoxine oxidase; and a gene encoding a pyridoxamine synthetase having an enzymatic activity of synthesizing pyridoxamine from pyridoxal, in which each of the gene encoding a pyridoxine oxidase and the gene encoding a pyridoxamine synthetase is introduced from outside of a bacterial cell, or is endogenous to the bacterial cell and has an enhanced expression, and a method of producing pyridoxamine or a salt thereof from pyridoxine or a salt thereof using the recombinant microorganism.
    Type: Application
    Filed: May 11, 2018
    Publication date: May 14, 2020
    Applicants: Mitsui Chemicals, Inc., RENASCIENCE CO., LTD
    Inventors: Toshihiro TATENO, Tomonori HIDESAKI, Tadashi ARAKI, Atsunori SHINDO, Yoshiko MATSUMOTO, Toshio MIYATA, Masaru HONJO
  • Publication number: 20200123581
    Abstract: A recombinant microorganism includes a gene encoding a pyridoxine dehydrogenase, a gene encoding a pyridoxamine synthetase having an enzymatic activity of synthesizing pyridoxamine from pyridoxal, and a gene encoding an amino acid regeneration enzyme having an enzymatic activity of regenerating an amino acid consumed by the pyridoxamine synthetase, in which at least two of the gene encoding the pyridoxine dehydrogenase, the gene encoding the pyridoxamine synthetase, or the gene encoding the amino acid regeneration enzyme, are introduced from outside of a bacterial cell, or are endogenous to the bacterial cell and have an enhanced expression. In addition, a recombinant microorganism into which a gene encoding a pyridoxine dehydrogenase is introduced is provided.
    Type: Application
    Filed: May 11, 2018
    Publication date: April 23, 2020
    Applicants: Mitsui Chemicals, Inc., RENASCIENCE CO., LTD
    Inventors: Toshihiro TATENO, Motoi YOKOTA, Tomonori HIDESAKI, Tadashi ARAKI, Atsunori SHINDO, Yoshiko MATSUMOTO, Toshio MIYATA, Masaru HONJO
  • Publication number: 20190338126
    Abstract: Provided is a curable organopolysiloxane composition from which highly heat-resistant cured products can be obtained, the curable organopolysiloxane composition comprising: (A) 100 parts by mass of a novel organopolysiloxane represented by formula (1) (R1 is an alkyl group or an alkoxy substituted alkyl group having 1 to 6 carbon atoms, R2 is a group selected from an alkyl group having 1 to 20 carbon atoms, an aryl group having 6 to 20 carbon atoms, and a group in which a portion of the hydrogen atoms of those groups is substituted with a halogen atom, Ar is an arylene group having 6 carbon atoms or more, a is 1 to 1,000, b is 1 to 5,000, and n is 1 to 3, the total of n in an unsubstituted or substituted alkoxysilyl group on both ends of the molecular chain being 3 or more); and (B) 0.01 to 10 parts by mass of a curing catalyst. Also provided are electrical and electronic components, a vehicle oil seal, a building sealant, etc. which use the cured product of the composition.
    Type: Application
    Filed: November 6, 2017
    Publication date: November 7, 2019
    Applicant: SHIN-ETSU CHEMICAL CO., LTD.
    Inventors: Tomoki AKIBA, Tadashi ARAKI, Takafumi SAKAMOTO
  • Patent number: 10323164
    Abstract: A hydrogenated block copolymer composition, comprising: a component (A) comprising at least one polymer block comprising a vinyl aromatic hydrocarbon as a primary component and at least one polymer block comprising a conjugated diene compound as a primary component and having a weight-average molecular weight of 30,000 or higher and 500,000 or lower, and a component (B) comprising at least two polymer blocks comprising a vinyl aromatic hydrocarbon and at least one polymer block comprising a conjugated diene compound as a primary component and having a weight-average molecular weight of 50,000 or higher and 1,000,000 or lower, wherein the composition satisfies predetermined requirements.
    Type: Grant
    Filed: May 12, 2015
    Date of Patent: June 18, 2019
    Assignee: Asahi Kasei Kabushiki Kaisha
    Inventors: Kosuke Nakatani, Takahiro Hisasue, Yoshifumi Araki, Tadashi Matsushita, Kenta Shibuya, Takeshi Aoyagi, Ippei Kameda, Atsushi Yasumoto
  • Patent number: 10221435
    Abstract: This invention relates to DNA encoding a novel enzyme having activity of synthesizing D-serine from formaldehyde and glycine, recombinant DNA constructed by integrating such DNA into a vector, a transformant transformed with the recombinant DNA, and a method for producing D-serine from formaldehyde and glycine with the use of the enzyme.
    Type: Grant
    Filed: June 6, 2017
    Date of Patent: March 5, 2019
    Assignee: MITSUI CHEMICALS, INC.
    Inventors: Tadashi Araki, Tomonori Hidesaki, Seiichi Watanabe, Keita Nishida, Kiyoteru Nagahara, Mitsuo Koito
  • Publication number: 20180201786
    Abstract: Provided are: a silicone gel composition providing a silicone gel cured product having excellent heat resistance at high temperatures; and a cured product (silicone gel) thereof. This silicone gel composition is an addition reaction-curable silicone gel composition containing, with respect to the total (mass) of the composition, 1-1,000 ppm of a niobium carboxylate and/or nickel carboxylate represented by the following formula (3). (R3COO)fM??(3) (In the formula, R3 is a homogeneous or heterogeneous monovalent hydrocarbon group, M is at least one metal selected from among nickel and niobium, and f is 2 when M is nickel and 4 or 5 when M is niobium.
    Type: Application
    Filed: May 23, 2016
    Publication date: July 19, 2018
    Applicant: SHIN-ETSU CHEMICAL CO., LTD.
    Inventor: Tadashi ARAKI
  • Patent number: 9822387
    Abstract: An acetyl-CoA-producing microorganism, which is capable of efficiently synthesizing acetyl-CoA using carbon dioxide, and a substance production method using the same are provided. An acetyl-CoA-producing microorganism including an acetyl-CoA production cycle obtained by imparting at least one type of enzymatic activity selected from the group consisting of malate thiokinase, malyl-CoA lyase, glyoxylate carboligase, 2-hydroxy-3-oxopropionate reductase, and hydroxypyruvate reductase, to a microorganism.
    Type: Grant
    Filed: July 27, 2012
    Date of Patent: November 21, 2017
    Assignee: MITSUI CHEMICALS, INC.
    Inventors: Ryota Fujii, Tomokazu Shirai, Tadashi Araki, Koh Amano, Yoshiko Matsumoto, Toshihiro Tateno, Nozomi Takebayashi, Takashi Morishige, Hitoshi Takahashi, Mitsufumi Wada, Hiroshi Shimizu, Chikara Furusawa, Takashi Hirasawa, Tomonori Hidesaki, Ayako Endo, Dominik Lukas Jürgen-Lohmann, Anjali Madhavan, Su Sun Chong
  • Publication number: 20170327853
    Abstract: This invention relates to DNA encoding a novel enzyme having activity of synthesizing D-serine from formaldehyde and glycine, recombinant DNA constructed by integrating such DNA into a vector, a transformant transformed with the recombinant DNA, and a method for producing D-serine from formaldehyde and glycine with the use of the enzyme.
    Type: Application
    Filed: June 6, 2017
    Publication date: November 16, 2017
    Applicant: Mitsui Chemicals, Inc.
    Inventors: Tadashi ARAKI, Tomonori HIDESAKI, Seiichi WATANABE, Keita NISHIDA, Kiyoteru NAGAHARA, Mitsuo KOITO
  • Patent number: 9765369
    Abstract: A mutant lysine decarboxylase produced by replacing at least one of the amino acids in SEQ ID NO:4 with another amino acid.
    Type: Grant
    Filed: January 17, 2013
    Date of Patent: September 19, 2017
    Assignee: MITSUI CHEMICALS, INC.
    Inventors: Daisuke Mochizuki, Tadashi Araki, Akiko Natsuji, Tomomi Sakai, Tomonori Hidesaki
  • Patent number: 9718926
    Abstract: A room-temperature-curable organopolysiloxane composition contains as essential components (A) an organopolysiloxane shown by the following general formula (1), (B) an alkoxysilane shown by the following general formula (2) or a partial hydrolysate thereof, (C) a silazane compound shown by the following general formula (3), (D) a bismuth compound shown by the following general formula (4) which is in a liquid state at 20° C., a partial hydrolysate thereof, or both of them, (E) one or more fillers, and (F) a silane coupling agent having amine structure or imine structure, in which the composition satisfies [component (C)/component (B)?1.0]. As a result, a room-temperature-curable organopolysiloxane composition has good curability and storage stability even without containing an organotin compound or an organotitanium compound, has safety in view of toxicity to the human body and environment, and exhibits good rubber physical properties and adhesion after curing.
    Type: Grant
    Filed: June 13, 2014
    Date of Patent: August 1, 2017
    Assignee: SHIN-ETSU CHEMICAL CO., LTD.
    Inventor: Tadashi Araki
  • Patent number: 9695452
    Abstract: This invention relates to DNA encoding a novel enzyme having activity of synthesizing D-serine from formaldehyde and glycine, recombinant DNA constructed by integrating such DNA into a vector, a transformant transformed with the recombinant DNA, and a method for producing D-serine from formaldehyde and glycine with the use of the enzyme.
    Type: Grant
    Filed: October 30, 2015
    Date of Patent: July 4, 2017
    Assignee: MITSUI CHEMICALS, INC.
    Inventors: Tadashi Araki, Tomonori Hidesaki, Seiichi Watanabe, Keita Nishida, Kiyoteru Nagahara, Mitsuo Koito
  • Publication number: 20170054907
    Abstract: A safety equipment includes a mounting part, circuitry, and a transmitter. An image capturing device is detachably mounted to the mounting part of the safety equipment. The image capturing device captures an image of an object to acquire data of a full spherical panoramic image. The circuitry acquires the data of the full spherical panoramic image from the image capturing device mounted to the mounting part. The transmitter transmits the acquired data of the full spherical panoramic image to a communication terminal through a communication network. The communication terminal outputs an image based on the acquired data of the full spherical panoramic image.
    Type: Application
    Filed: August 16, 2016
    Publication date: February 23, 2017
    Inventors: Yoshito NISHIHARA, Tadashi ARAKI, Aiko OHTSUKA
  • Publication number: 20160208152
    Abstract: A room-temperature-curable organopolysiloxane composition contains as essential components (A) an organopolysiloxane shown by the following general formula (1), (B) an alkoxysilane shown by the following general formula (2) or a partial hydrolysate thereof, (C) a silazane compound shown by the following general formula (3), (D) a bismuth compound shown by the following general formula (4) which is in a liquid state at 20° C., a partial hydrolysate thereof, or both of them, (E) one or more fillers, and (F) a silane coupling agent having amine structure or imine structure, in which the composition satisfies [component (C)/component (B)?1.0]. As a result, a room-temperature-curable organopolysiloxane composition has good curability and storage stability even without containing an organotin compound or an organotitanium compound, has safety in view of toxicity to the human body and environment, and exhibits good rubber physical properties and adhesion after curing.
    Type: Application
    Filed: June 13, 2014
    Publication date: July 21, 2016
    Applicant: SHIN-ETSU CHEMICAL CO., LTD.
    Inventor: Tadashi ARAKI
  • Publication number: 20160046970
    Abstract: This invention relates to DNA encoding a novel enzyme having activity of synthesizing D-serine from formaldehyde and glycine, recombinant DNA constructed by integrating such DNA into a vector, a transformant transformed with the recombinant DNA, and a method for producing D-serine from formaldehyde and glycine with the use of the enzyme.
    Type: Application
    Filed: October 30, 2015
    Publication date: February 18, 2016
    Applicant: MITSUI CHEMICALS, INC.
    Inventors: Tadashi ARAKI, Tomonori HIDESAKI, Seiichi WATANABE, Keita NISHIDA, Kiyoteru NAGAHARA, Mitsuo KOITO
  • Patent number: 9212376
    Abstract: This invention relates to DNA encoding a novel enzyme having activity of synthesizing D-serine from formaldehyde and glycine, recombinant DNA constructed by integrating such DNA into a vector, a transformant transformed with the recombinant DNA, and a method for producing D-serine from formaldehyde and glycine with the use of the enzyme.
    Type: Grant
    Filed: February 24, 2011
    Date of Patent: December 15, 2015
    Assignee: MITSUI CHEMICALS, INC.
    Inventors: Tadashi Araki, Tomonori Hidesaki, Seiichi Watanabe, Keita Nishida, Kiyoteru Nagahara, Mitsuo Koito
  • Patent number: 9150868
    Abstract: Disclosed is an Escherichia coli producing 2-deoxy-scyllo-inosose (DOI), which, from a sucrose non-PTS gene group, has at least a sucrose hydrolase (CscA)-encoding gene and which is provided with a DOI production system or has an enhanced DOI production system. The Escherichia coli preferably further includes a system to enhance sugar uptake capacity. There is also disclosed a method of producing DOI from a plant-derived raw material containing sucrose by using the Escherichia coli.
    Type: Grant
    Filed: October 30, 2009
    Date of Patent: October 6, 2015
    Assignee: MITSUI CHEMICALS, INC.
    Inventors: Junko Tokuda, Tomoyuki Natsuji, Hitoshi Takahashi, Tadashi Araki, Takashi Morishige, Katsuyuki Takahashi, Mitsufumi Wada
  • Publication number: 20150132808
    Abstract: A mutant lysine decarboxylase is produced by replacing at least one of the amino-acids in the amino acid sequence shown in sequence ID No. 4 of the sequence listing with another amino-acid.
    Type: Application
    Filed: January 17, 2013
    Publication date: May 14, 2015
    Inventors: Daisuke Mochizuki, Tadashi Araki, Akiko Natsuji, Tomomi Sakai, Tomonori Hidesaki