Patents by Inventor Takayuki Yonezawa

Takayuki Yonezawa 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: 11343918
    Abstract: A method of making a printed circuit board includes a step of providing a double-sided plate that is an insulating substrate having conductive layers on respective surfaces thereof, a first coating step of coating a first surface of the double-sided plate with a first photosensitive resin film, a second coating step of coating a second surface of the double-sided plate with a second photosensitive resin film, a first exposure step of exposing the photosensitive resin film coating the first surface after the first and second coating steps, and a second exposure step of exposing the photosensitive resin film coating the second surface after the first exposure step, wherein a maximum depth of a depression in an outermost surface of the second photosensitive resin film used in the second exposure step is less than 1.0 ?m.
    Type: Grant
    Filed: December 17, 2018
    Date of Patent: May 24, 2022
    Assignee: SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Shigeaki Uemura, Eiko Imazaki, Koji Nitta, Yoshio Oka, Hideki Matsuoka, Ippei Tanaka, Takayuki Yonezawa
  • Publication number: 20210045250
    Abstract: A method of making a printed circuit board includes a step of providing a double-sided plate that is an insulating substrate having conductive layers on respective surfaces thereof, a first coating step of coating a first surface of the double-sided plate with a first photosensitive resin film, a second coating step of coating a second surface of the double-sided plate with a second photosensitive resin film, a first exposure step of exposing the photosensitive resin film coating the first surface after the first and second coating steps, and a second exposure step of exposing the photosensitive resin film coating the second surface after the first exposure step, wherein a maximum depth of a depression in an outermost surface of the second photosensitive resin film used in the second exposure step is less than 1.0 ?m.
    Type: Application
    Filed: December 17, 2018
    Publication date: February 11, 2021
    Inventors: Shigeaki UEMURA, Eiko IMAZAKI, Koji NITTA, Yoshio OKA, Hideki MATSUOKA, Ippei TANAKA, Takayuki YONEZAWA
  • Patent number: 10244626
    Abstract: An object of the present invention is to provide an adhesive composition for a printed wiring board, the adhesive composition having a good heat resistance. Another object of the present invention is to provide a coverlay for a printed wiring board, a copper-clad laminate, and a printed wiring board, all of which use the adhesive composition for a printed wiring board. The present invention provides an adhesive composition for a printed wiring board, the adhesive composition containing a siloxane-modified polyimide that includes structural units represented by formulae (1) and (2) below, an epoxy resin, and an inorganic filler. The siloxane-modified polyimide has a weight-average molecular weight (Mw) of 25,000 or more and 150,000 or less. A content of the inorganic filler is 10 parts by mass or more and 100 parts by mass or less relative to 100 parts by mass of the siloxane-modified polyimide. In formulae (1) and (2), Ar represents a tetravalent aromatic tetracarboxylic acid residue, m is 0.35 or more and 0.
    Type: Grant
    Filed: September 8, 2014
    Date of Patent: March 26, 2019
    Assignees: SUMITOMO ELECTRIC INDUSTRIES, LTD., SUMITOMO ELECTRIC PRINTED CIRCUITS, INC.
    Inventors: Takayuki Yonezawa, Shingo Kaimori, Jun Sugawara, Shogo Asai, Yoshifumi Uchita, Masaya Kakimoto
  • Publication number: 20170304236
    Abstract: An object to be achieved by the present invention is to provide a novel antiallergic agent using, as an active ingredient, a compound that has heretofore not been known to have an antiallergic action. The present invention provides an antiallergic agent, including a compound represented by the formula (I) or a salt thereof: where R1 and R2, which are identical to or different from each other, each represent an alkyl group having 1 to 3 carbon atoms, m represents an integer of from 0 to 3, and n represents an integer of from 1 to 3.
    Type: Application
    Filed: March 31, 2016
    Publication date: October 26, 2017
    Applicant: TOHOKU UNIVERSITY
    Inventors: Noriyasu HIRASAWA, Je-Tae WOO, Byung-Yoon CHA, Takayuki YONEZAWA
  • Publication number: 20160198570
    Abstract: An object of the present invention is to provide an adhesive composition for a printed wiring board, the adhesive composition having a good heat resistance. Another object of the present invention is to provide a coverlay for a printed wiring board, a copper-clad laminate, and a printed wiring board, all of which use the adhesive composition for a printed wiring board. The present invention provides an adhesive composition for a printed wiring board, the adhesive composition containing a siloxane-modified polyimide that includes structural units represented by formulae (1) and (2) below, an epoxy resin, and an inorganic filler. The siloxane-modified polyimide has a weight-average molecular weight (Mw) of 25,000 or more and 150,000 or less. A content of the inorganic filler is 10 parts by mass or more and 100 parts by mass or less relative to 100 parts by mass of the siloxane-modified polyimide. In formulae (1) and (2), Ar represents a tetravalent aromatic tetracarboxylic acid residue, m is 0.35 or more and 0.
    Type: Application
    Filed: September 8, 2014
    Publication date: July 7, 2016
    Applicant: SUMITOMO ELECTROC INDUSTRIES, LTD.
    Inventors: Takayuki YONEZAWA, Shingo KAIMORI, Jun SUGAWARA, Shogo ASAI, Yoshifumi UCHITA, Masaya KAKIMOTO
  • Patent number: 8729279
    Abstract: Agents or pharmaceutical compositions for promoting osteoblast differentiation include purified auraptene or coumarin analogs thereof represented by the following formula 1: wherein R1 represents a hydrogen, a hydroxy, a methoxy, a methyl, an ethyl, a propyl, a carboxyl, a carboxymethyl, or a carboxyethyl; R2 represents a hydrogen, a hydroxy, a methoxy, a methyl, an ethyl, a propyl, a carboxyl, a carboxymethyl, a carboxyethyl or a coumarinyl; R3 represents a hydrogen, a hydroxy, a methoxy, a methyl, an ethyl, a propyl, a carboxyl, a carboxymethyl or a carboxyethyl; and R4 represents a hydrogen, a C1-C15 liner or branched alkyl, an alkenyl, an alkadienyl or an alkatrienyl.
    Type: Grant
    Filed: February 28, 2011
    Date of Patent: May 20, 2014
    Assignee: Erina Co., Inc.
    Inventors: Je-Tae Woo, Ayaka Hibino, Takayuki Yonezawa, Midori Asai, Toshiaki Teruya, Byung-Yoon Cha, Kazuo Nagai
  • Patent number: 8692023
    Abstract: The purpose of the present invention is to provide a highly safe composition that improves glucose tolerance and sugar metabolism at skeletal muscles, and a prevention/treatment drug for diabetes/metabolic syndrome containing the composition. Provided is a composition that is for improving sugar metabolism and glucose tolerance and that contains a compound represented by formula (I) derived from a plant selected from the group consisting of Rumex japonicus, R. crispus, and R. obtusifolius as the active ingredient.
    Type: Grant
    Filed: January 18, 2013
    Date of Patent: April 8, 2014
    Assignee: Erina Co., Inc.
    Inventors: Takayuki Yonezawa, Je-Tae Woo, Kazumi Yagasaki
  • Publication number: 20130253048
    Abstract: Provided is a composition that, even when used in a very small amount, has the effect of improving bone density and promoting bone growth, and has few side effects, and also provided are a pharmaceutical preparation for promoting bone growth, functional food product, and health food product containing the composition as an active ingredient. The composition can be obtained from any plant part selected from the group consisting of the bud, leaf, bark or wood of a plant belonging to the family Magnoliaceae. The composition comprises at least one selected from the group consisting of fargesin and physiologically acceptable salts, hydrates, and glycosides thereof. The pharmaceutical preparation, functional food product, and health food product comprising this composition as an active ingredient sufficiently improve bone density and promote bone growth, even when used in small amounts, and therefore realize preventive and/or therapeutic effects against bone disease etc. such as osteoporosis.
    Type: Application
    Filed: January 11, 2013
    Publication date: September 26, 2013
    Applicant: ERINA CO., INC.
    Inventors: Midori ASAI, Young-Sil Lee, Naomi MASE, Bong-Keun CHOI, Byung-Yoon CHA, Takayuki YONEZAWA, Toshiaki TERUYA, Kazuo NAGAI, Je-Tae WOO
  • Publication number: 20130245325
    Abstract: The purpose of the present invention is to provide a highly safe composition that improves glucose tolerance and sugar metabolism at skeletal muscles, and a prevention/treatment drug for diabetes/metabolic syndrome containing the composition. Provided is a composition that is for improving sugar metabolism and glucose tolerance and that contains a compound represented by formula (I) derived from a plant selected from the group consisting of Rumex japonicus, R. crispus, and R. obtusifolius as the active ingredient.
    Type: Application
    Filed: January 18, 2013
    Publication date: September 19, 2013
    Applicant: ERINA CO., INC.
    Inventors: Takayuki YONEZAWA, Je-Tae WOO, Kazumi YAGASAKI
  • Patent number: D947185
    Type: Grant
    Filed: December 31, 2020
    Date of Patent: March 29, 2022
    Assignee: MITUTOYO CORPORATION
    Inventors: Ryouichi Imaizumi, Takayuki Yonezawa
  • Patent number: D949851
    Type: Grant
    Filed: June 12, 2020
    Date of Patent: April 26, 2022
    Assignee: MITUTOYO CORPORATION
    Inventors: Shigeru Ohtani, Takayuki Yonezawa, Rie Arai, Motohiro Osaki
  • Patent number: D949852
    Type: Grant
    Filed: June 12, 2020
    Date of Patent: April 26, 2022
    Assignee: MITUTOYO CORPORATION
    Inventors: Shigeru Ohtani, Takayuki Yonezawa, Rie Arai, Motohiro Osaki
  • Patent number: D949853
    Type: Grant
    Filed: June 12, 2020
    Date of Patent: April 26, 2022
    Assignee: MITUTOYO CORPORATION
    Inventors: Shigeru Ohtani, Takayuki Yonezawa, Rie Arai, Motohiro Osaki
  • Patent number: D962869
    Type: Grant
    Filed: June 12, 2020
    Date of Patent: September 6, 2022
    Assignee: MITUTOYO CORPORATION
    Inventors: Shigeru Ohtani, Takayuki Yonezawa, Rie Arai, Motohiro Osaki
  • Patent number: D1012740
    Type: Grant
    Filed: April 14, 2022
    Date of Patent: January 30, 2024
    Assignee: MITUTOYO CORPORATION
    Inventors: Keiji Yamada, Kazuki Fujita, Takayuki Yonezawa, Shigemitsu Aoki
  • Patent number: D1013539
    Type: Grant
    Filed: April 14, 2022
    Date of Patent: February 6, 2024
    Assignee: MITUTOYO CORPORATION
    Inventors: Keiji Yamada, Kazuki Fujita, Takayuki Yonezawa, Shigemitsu Aoki
  • Patent number: D1026692
    Type: Grant
    Filed: April 14, 2022
    Date of Patent: May 14, 2024
    Assignee: MITUTOYO CORPORATION
    Inventors: Keiji Yamada, Kazuki Fujita, Takayuki Yonezawa, Shigemitsu Aoki
  • Patent number: D1034254
    Type: Grant
    Filed: April 14, 2022
    Date of Patent: July 9, 2024
    Assignee: MITUTOYO CORPORATION
    Inventors: Keiji Yamada, Kazuki Fujita, Takayuki Yonezawa, Shigemitsu Aoki
  • Patent number: D1044801
    Type: Grant
    Filed: January 12, 2023
    Date of Patent: October 1, 2024
    Assignee: Mitutoyo Corporation
    Inventors: Fumito Hiruta, Takayuki Yonezawa, Jun Odake, Osamu Saito
  • Patent number: D1046656
    Type: Grant
    Filed: September 22, 2022
    Date of Patent: October 15, 2024
    Assignee: Mitutoyo Corporation
    Inventors: Osamu Saito, Yuya Arashi, Jun Odake, Takayuki Yonezawa