Patents by Inventor Wataru Saitoh

Wataru Saitoh 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: 20250059151
    Abstract: An object of the present invention is to provide a compound having an anti-inflammatory activity or a pharmacologically acceptable salt thereof. The solution of the present invention is a compound of general formula (1) or a pharmacologically acceptable salt thereof. wherein the symbols in the formula are defined below: R1: e.g., a C1-C6 alkyl group; R2: a C1-C6 alkyl group; A: e.g., an oxygen atom; and R3: e.g., a C1-C6 alkyl group.
    Type: Application
    Filed: August 29, 2024
    Publication date: February 20, 2025
    Applicant: Daiichi Sankyo Company, Limited
    Inventors: Keiji Saito, Katsuyoshi Nakajima, Toru Taniguchi, Osamu Iwamoto, Satoshi Shibuya, Yasuyuki Ogawa, Kazumasa Aoki, Nobuya Kurikawa, Shinji Tanaka, Momoko Ogitani, Eriko Kioi, Kaori Ito, Natsumi Nishihama, Tsuyoshi Mikkaichi, Wataru Saitoh
  • Patent number: 12091395
    Abstract: An object of the present invention is to provide a compound having an anti-inflammatory activity or a pharmacologically acceptable salt thereof. The solution of the present invention is a compound of general formula (1) or a pharmacologically acceptable salt thereof. wherein the symbols in the formula are defined below: R1: e.g., a C1-C6 alkyl group; R2: a C1-C6 alkyl group; A: e.g., an oxygen atom; and R3: e.g., a C1-C6 alkyl group.
    Type: Grant
    Filed: November 3, 2023
    Date of Patent: September 17, 2024
    Assignee: Daiichi Sankyo Company, Limited
    Inventors: Keiji Saito, Katsuyoshi Nakajima, Toru Taniguchi, Osamu Iwamoto, Satoshi Shibuya, Yasuyuki Ogawa, Kazumasa Aoki, Nobuya Kurikawa, Shinji Tanaka, Momoko Ogitani, Eriko Kioi, Kaori Ito, Natsumi Nishihama, Tsuyoshi Mikkaichi, Wataru Saitoh
  • Patent number: 11981686
    Abstract: An object of the present invention is to provide a compound that has a specific chemical structure having an activation effect on SIRT6 and is useful as an active component for preventing and treating inflammatory diseases, and the present invention relates to a compound represented by Formula (1) or a pharmaceutically acceptable salt thereof, where each symbol in Formula (1) has the same definition as that described in the specification.
    Type: Grant
    Filed: January 23, 2020
    Date of Patent: May 14, 2024
    Assignee: DAIICHI SANKYO COMPANY, LIMITED
    Inventors: Junya Kawai, Osamu Iwamoto, Yuma Umezaki, Katsuyoshi Nakajima, Hiroyuki Tsuruoka, Keiji Saito, Nobuya Kurikawa, Natsumi Nishihama, Shinji Tanaka, Momoko Ogitani, Tomohiro Honda, Wataru Saitoh, Tsuyoshi Soneda, Nobuyuki Ohkawa
  • Publication number: 20240150309
    Abstract: An object of the present invention is to provide a compound having an anti-inflammatory activity or a pharmacologically acceptable salt thereof. The solution of the present invention is a compound of general formula (1) or a pharmacologically acceptable salt thereof. wherein the symbols in the formula are defined below: R1: e.g., a C1-C6 alkyl group; R2: a C1-C6 alkyl group; A: e.g., an oxygen atom; and R3: e.g., a C1-C6 alkyl group.
    Type: Application
    Filed: November 3, 2023
    Publication date: May 9, 2024
    Applicant: Daiichi Sankyo Company, Limited
    Inventors: Keiji Saito, Katsuyoshi Nakajima, Toru Taniguchi, Osamu Iwamoto, Satoshi Shibuya, Yasuyuki Ogawa, Kazumasa Aoki, Nobuya Kurikawa, Shinji Tanaka, Momoko Ogitani, Eriko Kioi, Kaori Ito, Natsumi Nishihama, Tsuyoshi Mikkaichi, Wataru Saitoh
  • Patent number: 11834427
    Abstract: An object of the present invention is to provide a compound having an anti-inflammatory activity or a pharmacologically acceptable salt thereof. The solution of the present invention is a compound of general formula (1) or a pharmacologically acceptable salt thereof. wherein the symbols in the formula are defined below: R1: e.g., a C1-C6 alkyl group; R2: a C1-C6 alkyl group; A: e.g., an oxygen atom; and R3: e.g., a C1-C6 alkyl group.
    Type: Grant
    Filed: October 13, 2022
    Date of Patent: December 5, 2023
    Assignee: Daiichi Sankyo Company, Limited
    Inventors: Keiji Saito, Katsuyoshi Nakajima, Toru Taniguchi, Osamu Iwamoto, Satoshi Shibuya, Yasuyuki Ogawa, Kazumasa Aoki, Nobuya Kurikawa, Shinji Tanaka, Momoko Ogitani, Eriko Kioi, Kaori Ito, Natsumi Nishihama, Tsuyoshi Mikkaichi, Wataru Saitoh
  • Publication number: 20230136988
    Abstract: An object of the present invention is to provide a compound having an anti-inflammatory activity or a pharmacologically acceptable salt thereof. The solution of the present invention is a compound of general formula (1) or a pharmacologically acceptable salt thereof. wherein the symbols in the formula are defined below: R1: e.g., a C1-C6 alkyl group; R2: a C1-C6 alkyl group; A: e.g., an oxygen atom; and R3: e.g., a C1-C6 alkyl group.
    Type: Application
    Filed: October 13, 2022
    Publication date: May 4, 2023
    Applicant: Daiichi Sankyo Company, Limited
    Inventors: Keiji Saito, Katsuyoshi Nakajima, Toru Taniguchi, Osamu Iwamoto, Satoshi Shibuya, Yasuyuki Ogawa, Kazumasa Aoki, Nobuya Kurikawa, Shinji Tanaka, Momoko Ogitani, Eriko Kioi, Kaori Ito, Natsumi Nishihama, Tsuyoshi Mikkaichi, Wataru Saitoh
  • Publication number: 20230058950
    Abstract: An object of the present invention is to provide a compound that has a specific chemical structure having an activation effect on SIRT6 and is useful as an active component for preventing and treating inflammatory diseases, and the present invention relates to a compound represented by Formula (1) or a pharmaceutically acceptable salt thereof, where each symbol in Formula (1) has the same definition as that described in the specification.
    Type: Application
    Filed: January 23, 2020
    Publication date: February 23, 2023
    Applicant: DAIICHI SANKYO COMPANY, LIMITED
    Inventors: Junya KAWAI, Osamu IWAMOTO, Yuma UMEZAKI, Katsuyoshi NAKAJIMA, Hiroyuki TSURUOKA, Keiji SAITO, Nobuya KURIKAWA, Natsumi NISHIHAMA, Shinji TANAKA, Momoko OGITANI, Tomohiro HONDA, Wataru SAITOH, Tsuyoshi SONEDA, Nobuyuki OHKAWA
  • Patent number: 11472784
    Abstract: An object of the present invention is to provide a compound having an anti-inflammatory activity or a pharmacologically acceptable salt thereof. The solution of the present invention is a compound of general formula (1) or a pharmacologically acceptable salt thereof. wherein the symbols in the formula are defined below: R1: e.g., a C1-C6 alkyl group; R2: a C1-C6 alkyl group; A: e.g., an oxygen atom; and R3: e.g., a C1-C6 alkyl group.
    Type: Grant
    Filed: March 25, 2021
    Date of Patent: October 18, 2022
    Assignee: Daiichi Sankyo Company, Limited
    Inventors: Keiji Saito, Katsuyoshi Nakajima, Toru Taniguchi, Osamu Iwamoto, Satoshi Shibuya, Yasuyuki Ogawa, Kazumasa Aoki, Nobuya Kurikawa, Shinji Tanaka, Momoko Ogitani, Eriko Kioi, Kaori Ito, Natsumi Nishihama, Tsuyoshi Mikkaichi, Wataru Saitoh
  • Publication number: 20210292292
    Abstract: An object of the present invention is to provide a compound having an anti-inflammatory activity or a pharmacologically acceptable salt thereof. The solution of the present invention is a compound of general formula (1) or a pharmacologically acceptable salt thereof. wherein the symbols in the formula are defined below: R1: e.g., a C1-C6 alkyl group; R2: a C1-C6 alkyl group; A: e.g., an oxygen atom; and R3: e.g., a C1-C6 alkyl group.
    Type: Application
    Filed: March 25, 2021
    Publication date: September 23, 2021
    Applicant: Daiichi Sankyo Company, Limited
    Inventors: Keiji Saito, Katsuyoshi Nakajima, Toru Taniguchi, Osamu Iwamoto, Satoshi Shibuya, Yasuyuki Ogawa, Kazumasa Aoki, Nobuya Kurikawa, Shinji Tanaka, Momoko Ogitani, Eriko Kioi, Kaori Ito, Natsumi Nishihama, Tsuyoshi Mikkaichi, Wataru Saitoh
  • Patent number: 10975052
    Abstract: An object of the present invention is to provide a compound having an anti-inflammatory activity or a pharmacologically acceptable salt thereof. The solution of the present invention is a compound of general formula (1) or a pharmacologically acceptable salt thereof. wherein the symbols in the formula are defined below: R1: e.g., a C1-C6 alkyl group; R2: a C1-C6 alkyl group; A: e.g., an oxygen atom; and R3: e.g., a C1-C6 alkyl group.
    Type: Grant
    Filed: April 9, 2020
    Date of Patent: April 13, 2021
    Assignee: Daiichi Sankyo Company, Limited
    Inventors: Keiji Saito, Katsuyoshi Nakajima, Toru Taniguchi, Osamu Iwamoto, Satoshi Shibuya, Yasuyuki Ogawa, Kazumasa Aoki, Nobuya Kurikawa, Shinji Tanaka, Momoko Ogitani, Eriko Kioi, Kaori Ito, Natsumi Nishihama, Tsuyoshi Mikkaichi, Wataru Saitoh
  • Publication number: 20200239425
    Abstract: An object of the present invention is to provide a compound having an anti-inflammatory activity or a pharmacologically acceptable salt thereof. The solution of the present invention is a compound of general formula (1) or a pharmacologically acceptable salt thereof. wherein the symbols in the formula are defined below: R1: e.g., a C1-C6 alkyl group; R2: a C1-C6 alkyl group; A: e.g., an oxygen atom; and R3: e.g., a C1-C6 alkyl group.
    Type: Application
    Filed: April 9, 2020
    Publication date: July 30, 2020
    Applicant: Daiichi Sankyo Company, Limited
    Inventors: Keiji Saito, Katsuyoshi Nakajima, Toru Taniguchi, Osamu Iwamoto, Satoshi Shibuya, Yasuyuki Ogawa, Kazumasa Aoki, Nobuya Kurikawa, Shinji Tanaka, Momoko Ogitani, Eriko Kioi, Kaori Ito, Natsumi Nishihama, Tsuyoshi Mikkaichi, Wataru Saitoh
  • Patent number: 10654821
    Abstract: An object of the present invention is to provide a compound having an anti-inflammatory activity or a pharmacologically acceptable salt thereof. The solution of the present invention is a compound of general formula (1) or a pharmacologically acceptable salt thereof. wherein the symbols in the formula are defined below: R1: e.g., a C1-C6 alkyl group; R2: a C1-C6 alkyl group; A: e.g., an oxygen atom; and R3: e.g., a C1-C6 alkyl group.
    Type: Grant
    Filed: September 5, 2019
    Date of Patent: May 19, 2020
    Assignee: Daiichi Sankyo Company, Limited
    Inventors: Keiji Saito, Katsuyoshi Nakajima, Toru Taniguchi, Osamu Iwamoto, Satoshi Shibuya, Yasuyuki Ogawa, Kazumasa Aoki, Nobuya Kurikawa, Shinji Tanaka, Momoko Ogitani, Eriko Kioi, Kaori Ito, Natsumi Nishihama, Tsuyoshi Mikkaichi, Wataru Saitoh
  • Patent number: 10570109
    Abstract: An object of the present invention is to provide a compound having an anti-inflammatory activity or a pharmacologically acceptable salt thereof. The solution of the present invention is a compound of general formula (1) or a pharmacologically acceptable salt thereof. wherein the symbols in the formula are defined below: R1: e.g., a C1-C6 alkyl group; R2: a C1-C6 alkyl group; A: e.g., an oxygen atom; and R3: e.g., a C1-C6 alkyl group.
    Type: Grant
    Filed: March 29, 2017
    Date of Patent: February 25, 2020
    Assignee: Daiichi Sankyo Company, Limited
    Inventors: Keiji Saito, Katsuyoshi Nakajima, Toru Taniguchi, Osamu Iwamoto, Satoshi Shibuya, Yasuyuki Ogawa, Kazumasa Aoki, Nobuya Kurikawa, Shinji Tanaka, Momoko Ogitani, Eriko Kioi, Kaori Ito, Natsumi Nishihama, Tsuyoshi Mikkaichi, Wataru Saitoh
  • Publication number: 20200002302
    Abstract: An object of the present invention is to provide a compound having an anti-inflammatory activity or a pharmacologically acceptable salt thereof. The solution of the present invention is a compound of general formula (1) or a pharmacologically acceptable salt thereof. wherein the symbols in the formula are defined below: R1: e.g., a C1-C6 alkyl group; R2: a C1-C6 alkyl group; A: e.g., an oxygen atom; and R3: e.g., a C1-C6 alkyl group.
    Type: Application
    Filed: September 5, 2019
    Publication date: January 2, 2020
    Applicant: Daiichi Sankyo Company, Limited
    Inventors: Keiji Saito, Katsuyoshi Nakajima, Toru Taniguchi, Osamu Iwamoto, Satoshi Shibuya, Yasuyuki Ogawa, Kazumasa Aoki, Nobuya Kurikawa, Shinji Tanaka, Momoko Ogitani, Eriko Kioi, Kaori Ito, Natsumi Nishihama, Tsuyoshi Mikkaichi, Wataru Saitoh
  • Publication number: 20190092741
    Abstract: An object of the present invention is to provide a compound having an anti-inflammatory activity or a pharmacologically acceptable salt thereof. The solution of the present invention is a compound of general formula (1) or a pharmacologically acceptable salt thereof. wherein the symbols in the formula are defined below: R1: e.g., a C1-C6 alkyl group; R2: a C1-C6 alkyl group; A: e.g., an oxygen atom; and R3: e.g., a C1-C6 alkyl group.
    Type: Application
    Filed: March 29, 2017
    Publication date: March 28, 2019
    Applicant: Daiichi Sankyo Company, Limited
    Inventors: Keiji Saito, Katsuyoshi Nakajima, Toru Taniguchi, Osamu Iwamoto, Satoshi Shibuya, Yasuyuki Ogawa, Kazumasa Aoki, Nobuya Kurikawa, Shinji Tanaka, Momoko Ogitani, Eriko Kioi, Kaori Ito, Natsumi Nishihama, Tsuyoshi Mikkaichi, Wataru Saitoh
  • Patent number: 7106085
    Abstract: An electronic circuit unit includes a circuit board mounted within a frame member, an electronic component with a cover mounted on the circuit board, and linear terminals passing through and being mounted in the circuit board. The terminals include first and second terminal groups arranged at an interval between the respective terminals in a line. The terminal groups are arranged in a line in the vicinity of one side of the circuit board. An opening portion is provided between the first and second terminal groups, and the electronic component with the cover is mounted on the circuit board while being disposed in the opening portion. As a result, a space factor for the arrangement of the electronic component with the cover is very good, and thus it is possible to reduce a widthwise dimension of the circuit board.
    Type: Grant
    Filed: September 2, 2004
    Date of Patent: September 12, 2006
    Assignee: Alps Electric Co., Ltd.
    Inventors: Masaaki Endo, Toshiro Furuta, Wataru Saitoh, Tadaomi Yamano
  • Patent number: 6919610
    Abstract: A semiconductor device including a drain layer having a first conductivity type, a drift layer having the first conductivity type, which is formed on the drain layer and has an impurity concentration lower than that in the drain layer, and a RESURF layer having a second conductivity type and formed to extend from a surface of the drift layer into the drain layer, the RESURF layer forming a superjunction structure together with the drift layer and forming a depletion layer in the drift layer.
    Type: Grant
    Filed: November 18, 2003
    Date of Patent: July 19, 2005
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Wataru Saitoh, Ichiro Omura
  • Publication number: 20050052198
    Abstract: An electronic circuit unit includes a circuit board mounted within a frame member, an electronic component with a cover mounted on the circuit boards, and linear terminals passing through and being mounted in the circuit board. The terminals include first and second terminal groups arranged at an interval between the respective terminals in a line. The terminal groups are arranged in a line in the vicinity of one side of the circuit board. An opening portion is provided between the first and second terminal groups, and the electronic component with the cover is mounted on the circuit board while being disposed in the opening portion. As a result, a space factor for the arrangement of the electronic component with the cover is very good, and thus it is possible to reduce a widthwise dimension of the circuit board.
    Type: Application
    Filed: September 2, 2004
    Publication date: March 10, 2005
    Inventors: Masaaki Endo, Toshiro Furuta, Wataru Saitoh, Tadaomi Yamano
  • Publication number: 20040094819
    Abstract: A semiconductor device includes a drain layer, first and second drift layers, a RESURF layer, a drain electrode, a base layer, a source layer, a source electrode, and a gate electrode. The first drift layer is formed on the drain layer. The second drift layers and RESURF layers are formed on the first drift layer and periodically arranged in a direction perpendicular to the direction of depth. The RESURF layer forms a depletion layer in the second drift layer by a p-n junction including the second drift layer and RESURF layer. The impurity concentration in the first drift layer is different from that in the second drift layer. The drain electrode is electrically connected to the drain layer.
    Type: Application
    Filed: November 18, 2003
    Publication date: May 20, 2004
    Inventors: Wataru Saitoh, Ichiro Omura
  • Patent number: 6700156
    Abstract: An insulated gate semiconductor device includes a first semiconductor layer of a first conductivity type. A plurality of second semiconductor layers of a second conductivity type selectively formed in a surface area of the first semiconductor layer. At least one third semiconductor layer of the first conductivity type is formed in a surface area of each of the second semiconductor layers. A fourth semiconductor layer is formed on a bottom of the first semiconductor layer. At least one fifth semiconductor layer of the second conductivity type is provided in the first semiconductor layer and connected to at least one of the plurality of second semiconductor layers. The fifth semiconductor layer has impurity concentration that is lower than that of the second semiconductor layers.
    Type: Grant
    Filed: December 18, 2002
    Date of Patent: March 2, 2004
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Wataru Saitoh, Ichiro Omura, Satoshi Aida