Patents by Inventor Tatsuya Saito

Tatsuya Saito 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: 11581763
    Abstract: A core piece that is circularly arranged to construct a stator core of an axial gap type rotary electric machine includes: a first member in a column form extending in an axial direction of the stator core; a second member in a plate form disposed on a first end side of the axial direction in the first member; and a third member in a plate form disposed on a second end side of the axial direction in the first member, the first member has a peripheral surface connecting with the second member and the third member, the second member has a protruding portion projecting outwardly from the peripheral surface of the first member, the third member has a protruding portion projecting outwardly from the peripheral surface of the first member, and the first member, the second member, and the third member are configured by an integrally molded green compact.
    Type: Grant
    Filed: March 31, 2021
    Date of Patent: February 14, 2023
    Assignees: SUMITOMO ELECTRIC INDUSTRIES, LTD., SUMITOMO ELECTRIC SINTERED ALLOY, LTD.
    Inventors: Tatsuya Saito, Tomoyuki Ueno
  • Publication number: 20230024003
    Abstract: The present invention provides an amidite compound capable of improving a yield and a purity of a polyoligonucleotide, a glycoside compound as an intermediate thereof, and a production method for a polynucleotide using the amidite compound. The present invention also provides an amidite compound of formula (1) capable of improving a yield and a purity of a polyoligonucleotide, a glycoside compound of formula (10) (in formulae (10) and (1), Ba, Ra, Rb, Rc, G1, G2, and G3 are as defined in the description, and R is represented by the following formulae), and a production method for a polynucleotide using the amidite compound.
    Type: Application
    Filed: August 28, 2020
    Publication date: January 26, 2023
    Applicant: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventors: Ikuya OSHIRO, Tatsuya SAITO, Hideki IHARA
  • Publication number: 20230022212
    Abstract: A purpose of the present invention is to provide a method for producing a glycoside compound having a high purity. The present invention provides a method for producing a glycoside compound represented by formula (3) (wherein Ba, i-Pr and n are the same as those defined below), which comprises reacting a glycoside compound of formula (1) (wherein Ba represents an adenine group which may be optionally substituted with an acyl group, and i-Pr represents an isopropyl group) with an ether compound of formula (2) (wherein R1 represents a C1-C6 alkyl group or a phenyl group, and n is 0 or 1) in one or more solvents selected from tetrahydropyran and 4-methyltetrahydropyran in the presence of one or more halogenated agents selected from halogen, N-halogenated succinimide, and N-halogenated hydantoin.
    Type: Application
    Filed: August 28, 2020
    Publication date: January 26, 2023
    Applicant: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventors: Tatsuya SAITO, Hideki IHARA
  • Patent number: 11542292
    Abstract: Provided a polymerizable compound represented by the following Formula A-1 or Formula A-2: In Formula A-1 or Formula A-2, R1 represents an electron-donating group; n represents an integer from 1 to 5; R2 represents a hydrogen atom, a halogen atom, or —ORO, wherein RO represents a hydrogen atom, an alkyl group, or a protecting group of a hydroxy group; R3 represents a hydrogen atom or a protecting group of a hydroxy group; and X represents a structure represented by any one of Formula B-1 to Formula B-5.
    Type: Grant
    Filed: November 9, 2017
    Date of Patent: January 3, 2023
    Assignee: TOKYO UNIVERSITY OF SCIENCE FOUNDATION
    Inventors: Takeshi Wada, Tatsuya Saito, Yuka Ishii, Yohei Nukaga
  • Publication number: 20220352768
    Abstract: A core piece that is circularly arranged to construct a stator core of an axial gap type rotary electric machine includes: a first member in a column form extending in an axial direction of the stator core; a second member in a plate form disposed on a first end side of the axial direction in the first member; and a third member in a plate form disposed on a second end side of the axial direction in the first member, the first member has a peripheral surface connecting with the second member and the third member, the second member has a protruding portion projecting outwardly from the peripheral surface of the first member, the third member has a protruding portion projecting outwardly from the peripheral surface of the first member, and the first member, the second member, and the third member are configured by an integrally molded green compact.
    Type: Application
    Filed: March 31, 2021
    Publication date: November 3, 2022
    Applicants: Sumitomo Electric Industries, Ltd., Sumitomo Electric Sintered Alloy, Ltd.
    Inventors: Tatsuya SAITO, Tomoyuki UENO
  • Patent number: 11487319
    Abstract: An image display device has an image display unit including a display for displaying images and a backlight arranged behind the display to illuminate the display. The image display device includes an opening formed behind the image display unit, an optical sensor which detects light passing through the opening, and a sensor holder which holds the optical sensor, and the opening includes a protruding diaphragm and a passage hole.
    Type: Grant
    Filed: March 27, 2018
    Date of Patent: November 1, 2022
    Assignee: Sharp NEC Display Solutions, Ltd.
    Inventor: Tatsuya Saito
  • Publication number: 20220329115
    Abstract: Provided is an axial gap-type rotary electric machine in which a first stator, a second stator, and a rotor are arranged in a direction of a rotary shaft of the rotor. The first stator includes a first coil and a first core. The second stator includes a second coil and a second core. The first core includes an annular first yoke, a plurality of first teeth, and a first mark indicating a reference position in a circumferential direction of the first yoke. The second core includes an annular second yoke, a plurality of second teeth, and a second mark indicating a reference position in a circumferential direction of the second yoke. When viewed in the direction of the rotary shaft, the first mark and the second mark are symmetrically positioned with respect to the rotary shaft.
    Type: Application
    Filed: September 8, 2020
    Publication date: October 13, 2022
    Applicants: Sumitomo Electric Industries, Ltd., Sumitomo Electric Sintered Alloy, Ltd.
    Inventors: Tatsuya SAITO, Tomoyuki UENO, Yuichi NAKAMURA
  • Patent number: 11437299
    Abstract: A semiconductor apparatus comprising a first substrate that has a first surface and a second surface and is provided with a through hole extending through from the first surface to the second surface and an insulating layer and a conductive member that are provided in the through hole is provided. The through hole includes a first opening formed in the first substrate and a second opening provided between the first opening and the second surface. The first opening and the second opening each have a tapered shape whose opening width decreases from the first surface to the second surface, and a first taper angle formed by a side surface of the first opening and a plane parallel to the second surface is smaller than a second taper angle formed by a side surface of the second opening and a plane parallel to the second surface.
    Type: Grant
    Filed: June 2, 2020
    Date of Patent: September 6, 2022
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Tatsuya Saito
  • Patent number: 11401296
    Abstract: The present invention provides an amidite compound represented by formula (1) which enables a synthesis of RNA with high purity, and the method for preparing a polynucleotide by using the same compound. (In the formula (1), wherein R represents the following formula (wherein Ra and Rb are identical to or different from each other and each represents a methyl group, an ethyl group, or a hydrogen atom, with the proviso that Ra and Rb does not represent a hydrogen atom, n is an integer of 1 to 5), and Ba represents a group containing optionally protected nucleobase structure, and G1 and G2 are identical to or different from each other and each represents a protecting group for a hydroxy group, and G3 are identical to or different from each other and each represents an alkyl group.
    Type: Grant
    Filed: April 23, 2019
    Date of Patent: August 2, 2022
    Assignee: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventors: Yuki Tanaka, Tatsuya Saito, Hideki Ihara
  • Publication number: 20220181923
    Abstract: An interconnected assembly includes a first member formed from a compressed mass of soft magnetic powder, a second member that is a separate piece from the first member, and a self-tapping screw extending through the second member to reach the first member to interconnect the first member and the second member, wherein at least the first member, among the first member and the second member, has a pilot hole into which a thread of the self-tapping screw bites, wherein an inner diameter of the pilot hole is greater than or equal to 83% and less than or equal to 95% of a major diameter of the self-tapping screw, and is greater than a minor diameter of the self-tapping screw, and wherein a helical gap is formed between an outer circumferential surface of the self-tapping screw and an inner circumferential surface of the pilot hole.
    Type: Application
    Filed: April 3, 2020
    Publication date: June 9, 2022
    Inventors: Tatsuya SAITO, Tomoyuki UENO, Yuichi NAKAMURA
  • Publication number: 20220131116
    Abstract: A vapor deposition mask includes a silicon substrate including a first region that has a first thickness and that includes a part in which a plurality of through-holes is arranged, and a second region that is arranged at an outer circumference of the first region and that has a second thickness that is greater than the first thickness. The silicon substrate has an inner wall that constitutes a step between the first region and the second region. An outer edge of the inner wall has a curve portion in a plan view, and the inner wall has a plurality of steps in a cross-section view.
    Type: Application
    Filed: October 26, 2021
    Publication date: April 28, 2022
    Inventors: Shinichiro Watanabe, Takahiro Yajima, Tatsuya Saito, Tatsuro Uchida
  • Publication number: 20220099721
    Abstract: A detector that detects or oscillates an electromagnetic wave, the detector including a plurality of antennas having a rectifying element, wherein the plurality of arranged antennas at least include: a first antenna having a first resonant frequency; and a second antenna having a second resonant frequency that differs from the first resonant frequency.
    Type: Application
    Filed: September 23, 2021
    Publication date: March 31, 2022
    Inventors: Tatsuya Saito, Takahiro Yajima, Takahiro Sato
  • Publication number: 20220060066
    Abstract: A core for use in an axial gap rotating electric machine, the core including: a yoke having an annular plate shape; and a plurality of teeth having a columnar shape arranged at intervals in a circumferential direction of the yoke, wherein the yoke has: an outer-circumferential face; an inner-circumferential face; a first face having a flat shape connecting the outer-circumferential face and the inner-circumferential face to each other; and a plurality of recessed portions connected to the first face, each of the plurality of teeth has an outer-circumferential face protruding in an axial direction of the yoke with respect to the first face, each of the plurality of recessed portions are connected to at least a portion of each one of the plurality of teeth in a circumferential direction of the outer-circumferential face, all shortest distances between at least one of an outer-circumferential edge of the first face and an inner-circumferential edge of the first face and the outer-circumferential faces of the plu
    Type: Application
    Filed: December 13, 2019
    Publication date: February 24, 2022
    Applicants: SUMITOMO ELECTRIC INDUSTRIES, LTD., Sumitomo Electric Sintered Alloy, Ltd.
    Inventors: Tatsuya SAITO, Tomoyuki UENO, Yuka FUKUNAGA, Hijiri TSURUTA, Shinichi HIRONO
  • Patent number: 11236790
    Abstract: A ventilated type brake disc rotor includes: a pair of sliding plates shaped annular and disposed opposite to each other in an axle direction; and joints formed to connect between the sliding plates and arranged along lines extending in a circumferential direction of the sliding plates. The joints include first joints arranged along a first line and second joints arranged along a second line located in an outer side with respect to the first line in a radial direction of the sliding plates. Each of the second joints includes a first width part and a second width part formed in an inner side with respect to the first width part in the radial direction. The second width part is less in circumferential width than the first width part, and is shaped to decrease in circumferential width as going inwardly in the radial direction.
    Type: Grant
    Filed: December 10, 2019
    Date of Patent: February 1, 2022
    Assignee: KIRIU CORPORATION
    Inventors: Toshikazu Okamura, Tatsuya Yamagishi, Tatsuya Saito
  • Publication number: 20220014050
    Abstract: A core used in an axial-gap rotating electric device includes an annular back yoke and a plurality of teeth protruding in an axial direction that is perpendicular to a first flat surface of the back yoke. The plurality of teeth are provided on the first flat surface at intervals in a circumferential direction. The back yoke and the teeth are constituted of an integrally-molded powder compact. A first curved section that connects a peripheral surface of each tooth and the first flat surface of the back yoke is provided at a corner between the tooth and the back yoke. The first curved section has a curvature radius ranging between 0.2 mm and 1.5 mm inclusive.
    Type: Application
    Filed: September 5, 2019
    Publication date: January 13, 2022
    Applicants: Sumitomo Electric Industries, Ltd., Sumitomo Electric Sintered Alloy, Ltd.
    Inventors: Tatsuya SAITO, Tomoyuki UENO, Hijiri TSURUTA, Yuichi NAKAMURA, Yuka FUKUNAGA
  • Patent number: 11211198
    Abstract: A method for manufacturing a powder magnetic core includes: a step of preparing a soft magnetic powder and an oxide powder and preparing, as a raw material powder, a mixed powder of the soft magnetic powder and the oxide powder, the soft magnetic powder containing composite soft magnetic particles containing pure iron and an Fe-? alloy having an element ? more oxidizable than Fe, the composite soft magnetic particles each having a core-shell structure where a core is made of one of pure iron and the Fe-? alloy and a shell is made of the other, the oxide powder containing oxide particles containing at least one selected from Fe and an element ? that forms an oxide having higher electrical resistance than Fe3O4; a step of compacting the mixed powder into a green compact; and a step o sintering the green compact at 900° C. or more and 1300° C. or less.
    Type: Grant
    Filed: August 3, 2018
    Date of Patent: December 28, 2021
    Assignees: SUMITOMO ELECTRIC INDUSTRIES, LTD., SUMITOMO ELECTRIC SINTERED ALLOY, LTD.
    Inventors: Tatsuya Saito, Tomoyuki Ueno, Koji Yamada
  • Publication number: 20210384778
    Abstract: A core used in an axial gap type rotating electrical machine includes an annular yoke having a plurality of through-holes disposed in a circumferential direction, and a plurality of columnar teeth disposed in the circumferential direction of the yoke, each of the plurality of columnar teeth including one end inserted into each of the plurality of through-holes. The yoke and each of the teeth are composed of a powder compact separate from each other, and the one end of each of the teeth is off-center in the through-hole.
    Type: Application
    Filed: December 11, 2019
    Publication date: December 9, 2021
    Inventors: Tatsuya SAITO, Yuichi NAKAMURA, Tomoyuki UENO
  • Publication number: 20210355153
    Abstract: A process for preparing a glycoside compound represented by formula (3), which includes reacting a glycoside compound represented by formula (1) with an ether compound represented. by formula (2) in the presence of an. oxidizing agent and an acid to prepare a glycoside compound represented by formula (3), where the oxidizing agent is added to a reaction system, followed by adding an acid thereto, where Ba represents a cytosine group which may be optionally substituted with acyl group, or an uracil group, R1 represents a C1 to C6 alkyl group or a phenyl group, and n is 0 or 1, where an oxidizing agent is selected from N-halogenated succinimide and N-halogenated hydantoin, and an acid is selected from perfluoroalkylcarboxylic acid, alkylsulfonic acid, arylsulfonic acid, periluoroalkylsulfonic acid, and salts thereof, and any combinations thereof, which can provide a synthesis of a desired compound with high purity.
    Type: Application
    Filed: September 6, 2019
    Publication date: November 18, 2021
    Applicant: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventors: Tatsuya SAITO, Hideki IHARA
  • Publication number: 20210351639
    Abstract: A core that is used in an axial-gap rotary electric machine and that includes a body, and frame-shaped flange portions. The body includes an annular yoke and columnar teeth that are arranged in a circumferential direction of the yoke. The flange portions are fixed to end portions of the respective teeth. The yoke and the teeth are composed of a single powder compact. Each of the flange portions is composed of a powder compact that has a through-hole. The end portion of each of the teeth is inserted in the through-hole, and an end surface of each of the teeth is exposed from the through-hole. A ratio of an area of the end surface of each of the teeth to an area within an outer circumferential edge of each of the flange portions is 7.5% or more in a plan view in an axial direction of the yoke.
    Type: Application
    Filed: September 5, 2019
    Publication date: November 11, 2021
    Applicants: Sumitomo Electric Industries, Ltd., Sumitomo Electric Sintered Alloy, Ltd.
    Inventors: Tatsuya SAITO, Yuichi NAKAMURA, Tomoyuki UENO
  • Publication number: 20210344238
    Abstract: A core for use in an axial-gap rotary electric machine is annular and includes a plurality of core pieces into which the core is divided in a circumferential direction. Each core piece includes a yoke portion and a tooth portion that is formed integrally with the yoke portion and that projects from the yoke portion in an axial direction. Each yoke portion includes a plurality of protrusions provided on one side surface connected to the yoke portion of an adjacent one of the core pieces, and a plurality of recesses provided on other side surface connected to the yoke portion of another adjacent one of the core pieces, the recesses corresponding to the protrusions. An interval between the protrusions is 80% or less of a length of the one side surface of the yoke portion, the length being a direct distance between inner and outer peripheries of the yoke portion.
    Type: Application
    Filed: October 17, 2019
    Publication date: November 4, 2021
    Applicants: Sumitomo Electric Industries, Ltd., Sumitomo Electric Sintered Alloy, Ltd.
    Inventors: Tatsuya SAITO, Tomoyuki UENO