Patents by Inventor Takashi Yaegashi

Takashi Yaegashi 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: 9174979
    Abstract: A novel compound having an excellent NF?B inhibitory effect is provided and specifically disclosed is a compound represented by the following formula (1) or a salt thereof: wherein, R1 represents a hydrogen atom, a lower alkyl group, a lower alkyloxy group, or a halogen atom; R2 represents a hydroxyl group, or a lower alkyloxy group; R3 represents a hydrogen atom, a lower alkyl group, or a halogen atom; R4 represents a hydrogen atom or a lower alkyloxy group; R5 represents a hydrogen atom, a lower alkyloxy group, a halogen atom, a hydroxyl group, or a methylenedioxy group formed together with R6 or an isopropylidenedioxy group formed together with R6; R6 represents a hydrogen atom, a lower alkyloxy group, or a methylenedioxy group formed together with R5 or an isopropylidenedioxy group formed together with R5; R7 represents a hydrogen atom or a lower alkyl group; and R8 represents a hydrogen atom, a hydroxyl group, an amino group, or a lower alkylcarbonyloxy group (excluding the case where R1, R3, R4 and R7 a
    Type: Grant
    Filed: October 23, 2009
    Date of Patent: November 3, 2015
    Assignee: KABUSHIKI KAISHA YAKULT HONSHA
    Inventors: Takashi Ikeda, Seigo Sawada, Takashi Yaegashi, Takeshi Matsuzaki, Shusuke Hashimoto, Ryuta Yamazaki
  • Patent number: 8978725
    Abstract: A bicycle wheel rim structure is provided with a rim, a cap and a tape. The rim includes a first annular side portion, a second annular side portion and an annular bridge portion extending between the first and second annular side portions. The bridge portion has at least one opening. The cap includes a base plate and a projection. The base plate overlies an outer rim surface of the annular bridge portion. The projection extends from the base plate into the at least one opening. The tape is attached to the outer rim surface of the annular bridge portion and overlying the base plate of the cap. The tape is dimensioned to cover an interface between a peripheral edge of the base plate of the cap and the outer rim surface of the annular bridge portion.
    Type: Grant
    Filed: October 20, 2011
    Date of Patent: March 17, 2015
    Assignee: Shimano Inc.
    Inventors: Kazuki Koshiyama, Hiroshi Fujita, Takashi Yaegashi
  • Publication number: 20140343017
    Abstract: Provided is a highly safe and effective compound represented by the following general formula (1) or a salt thereof which acts on tubulin and has an anticancer effect, wherein Ar represents an aryl group or a heteroaryl group; Z1, Z2, Z3, and Z4 each independently represent CH, a nitrogen atom, an oxygen atom, or a sulfur atom; R1 represents a hydrogen atom, a halogen atom, an alkyl group, or the like; R2 and R3 are the same or different and each represent a hydrogen atom, a halogen atom, a carboxyl group, or the like; n units of R4 are the same or different and each represent a hydrogen atom, an alkyl group, or the like; and n represents a number of 0 to 4.
    Type: Application
    Filed: January 24, 2013
    Publication date: November 20, 2014
    Applicant: Kabushiki Kaisha Yakult Honsha
    Inventors: Takashi Ikeda, Masahiro Ono, Satoshi Ueno, Ryuta Yamazaki, Takashi Yaegashi, Takeshi Matsuzaki
  • Patent number: 8569327
    Abstract: A novel compound having an excellent NF?B inhibitory effect is provided. Specifically disclosed is a compound represented by the following formula (1) or a salt thereof: wherein, R1 represents a hydrogen atom, a lower alkyl group, or the like; R2 represents a hydrogen atom, a lower alkyl group, a halogen atom, or the like; R3 represents a hydrogen atom, a lower alkyl group, a hydroxyl group, or a halogen atom; R4 represents a hydrogen atom or a lower alkyloxy group; R5 represents a hydrogen atom, a lower alkyloxy group, a halogen atom, a hydroxyl group, or a methylenedioxy group formed together with R6 or an isopropylidenedioxy group formed together with R6; R6 represents a hydrogen atom, a lower alkyloxy group, or a methylenedioxy group formed together with R5 or an isopropylidenedioxy group formed together with R5; R7 represents a hydrogen atom or a lower alkyl group; and R8 represents a hydrogen atom, a hydroxyl group, an amino group, a lower alkylcarbonyloxy group, or a halogen atom.
    Type: Grant
    Filed: October 23, 2009
    Date of Patent: October 29, 2013
    Assignee: Kabushiki Kaisha Yakult Honsha
    Inventors: Takashi Ikeda, Seigo Sawada, Takashi Yaegashi, Takeshi Matsuzaki, Shusuke Hashimoto, Ryuta Yamazaki
  • Patent number: 8476438
    Abstract: Disclosed is a process for production of 7-ethyl-10-[4-(1-piperidino)-1-piperidino]-carbonyloxycamptothecin from a camptothecin composition containing 18,19-dehydrocamptothecin without producing any vinyl form of the compound. The process is characterized by catalytically reducing at least one compound selected from a compound (1) and others in the process of producing a compound (5) from a composition containing the compound (1).
    Type: Grant
    Filed: April 27, 2007
    Date of Patent: July 2, 2013
    Assignee: Kabushiki Kaisha Yakult Honsha
    Inventors: Seigo Sawada, Takashi Yaegashi
  • Publication number: 20130099556
    Abstract: A bicycle wheel rim structure is provided with a rim, a cap and a tape. The rim includes a first annular side portion, a second annular side portion and an annular bridge portion extending between the first and second annular side portions. The bridge portion has at least one opening. The cap includes a base plate and a projection. The base plate overlies an outer rim surface of the annular bridge portion. The projection extends from the base plate into the at least one opening. The tape is attached to the outer rim surface of the annular bridge portion and overlying the base plate of the cap. The tape is dimensioned to cover an interface between a peripheral edge of the base plate of the cap and the outer rim surface of the annular bridge portion.
    Type: Application
    Filed: October 20, 2011
    Publication date: April 25, 2013
    Applicant: SHIMANO INC.
    Inventors: Kazuki KOSHIYAMA, Hiroshi FUJITA, Takashi YAEGASHI
  • Publication number: 20120142926
    Abstract: Disclosed is a process for production of 7-ethyl-10-[4-(1-piperidino)-1-piperidino]-carbonyloxycamptothecin from a camptothecin composition containing 18,19-dehydrocamptothecin without producing any vinyl form of the compound. The process is characterized by catalytically reducing at least one compound selected from a compound (1) and others in the process of producing a compound (5) from a composition containing the compound (1).
    Type: Application
    Filed: April 27, 2007
    Publication date: June 7, 2012
    Applicant: Kabushiki Kaisha Yakult Honsha
    Inventors: Seigo Sawada, Takashi Yaegashi
  • Publication number: 20110201637
    Abstract: A novel compound having an excellent NF?B inhibitory effect is provided. Specifically disclosed is a compound represented by the following formula (1) or a salt thereof: wherein, R1 represents a hydrogen atom, a lower alkyl group, or the like; R2 represents a hydrogen atom, a lower alkyl group, a halogen atom, or the like; R3 represents a hydrogen atom, a lower alkyl group, a hydroxyl group, or a halogen atom; R4 represents a hydrogen atom or a lower alkyloxy group; R5 represents a hydrogen atom, a lower alkyloxy group, a halogen atom, a hydroxyl group, or a methylenedioxy group formed together with R6 or an isopropylidenedioxy group formed together with R6; R6 represents a hydrogen atom, a lower alkyloxy group, or a methylenedioxy group formed together with R5 or an isopropylidenedioxy group formed together with R5; R7 represents a hydrogen atom or a lower alkyl group; and R8 represents a hydrogen atom, a hydroxyl group, an amino group, a lower alkylcarbonyloxy group, or a halogen atom.
    Type: Application
    Filed: October 23, 2009
    Publication date: August 18, 2011
    Applicant: KABUSHIKI KAISHA YAKULT HONSHA
    Inventors: Takashi Ikeda, Seigo Sawada, Takashi Yaegashi, Takeshi Matsuzaki, Shusuke Hashimoto, Ryuta Yamazaki
  • Publication number: 20110201638
    Abstract: A novel compound having an excellent NF?B inhibitory effect is provided and specifically disclosed is a compound represented by the following formula (1) or a salt thereof: wherein, R1 represents a hydrogen atom, a lower alkyl group, a lower alkyloxy group, or a halogen atom; R2 represents a hydroxyl group, or a lower alkyloxy group; R3 represents a hydrogen atom, a lower alkyl group, or a halogen atom; R4 represents a hydrogen atom or a lower alkyloxy group; R5 represents a hydrogen atom, a lower alkyloxy group, a halogen atom, a hydroxyl group, or a methylenedioxy group formed together with R6 or an isopropylidenedioxy group formed together with R6; R6 represents a hydrogen atom, a lower alkyloxy group, or a methylenedioxy group formed together with R5 or an isopropylidenedioxy group formed together with R5; R7 represents a hydrogen atom or a lower alkyl group; and R8 represents a hydrogen atom, a hydroxyl group, an amino group, or a lower alkylcarbonyloxy group (excluding the case where R1, R3, R4 and R7
    Type: Application
    Filed: October 23, 2009
    Publication date: August 18, 2011
    Applicant: KABUSHIKI KAISHA YAKULT HONSHA
    Inventors: Takashi Ikeda, Seigo Sawada, Takashi Yaegashi, Takeshi Matsuzaki, Shusuke Hashimoto, Ryuta Yamazaki
  • Publication number: 20100249089
    Abstract: The present invention relates to a breast cancer resistance protein (BCRP/ABCG2) inhibitor. The invention provides an acrylonitrile derivative represented by formula (1): (wherein A represents an optionally substituted 3- to 8-membered heterocyclic ring) or a salt thereof.
    Type: Application
    Filed: December 2, 2008
    Publication date: September 30, 2010
    Applicant: KABUSHIKI KAISHA YAKULT HONSHA
    Inventors: Ryuta Yamazaki, Hiroshi Hatano, Takashi Yaegashi, Yoshiaki Igarashi, Oh Yoshida, Yoshikazu Sugimoto
  • Patent number: 7578563
    Abstract: A bicycle rim is basically provided with an annular metallic rim member and a reinforcing member. The annular metallic rim member includes a plurality of spoke attachment areas with at least one spoke attachment opening in each of the spoke attachment areas. The reinforcing member overlies an exterior surface of the annular metallic rim member. The reinforcing member includes a plurality of spoke attachment sections individually arranged in a circumferential direction to overlie the spoke attachment openings. The spoke attachment sections include a plurality of discrete first reinforcing parts and a plurality of discrete second reinforcing parts. The first reinforcing parts are attached to the spoke attachment areas around the spoke attachment openings. The second reinforcing parts are attached to the spoke attachment areas to overlie the first reinforcing parts, with the second reinforcing parts being larger than the first reinforcing parts.
    Type: Grant
    Filed: April 25, 2007
    Date of Patent: August 25, 2009
    Assignee: Shimano Inc.
    Inventors: Tsutomu Muraoka, Takashi Yaegashi, Shinpei Okajima
  • Patent number: 7488825
    Abstract: A method for preparing a novel crystalline polymorphic irinotecan hydrochloride which is excellent in the solubility in water and reduced in the content of impurities is provided. A method for preparing c-type crystals of irinotecan hydrochloride having diffraction peaks (2?) at 9.15°, 10.00°, 11.80°, 12.20°, 13.00° and 13.40° in the powder X-ray diffractometry characterized by mixing irinotecan with one or more solvents selected from the group consisting of acetone, acetonitrile and tetrahydrofuran, adding hydrochloric acid, and collecting the formed crystals.
    Type: Grant
    Filed: February 24, 2004
    Date of Patent: February 10, 2009
    Assignee: Kabushiki Kaisha Yakult Honsha
    Inventors: Hideaki Shimizu, Atsuhiro Abe, Takashi Yaegashi, Seigo Sawada
  • Patent number: 7464994
    Abstract: A bicycle rim is provided with an annular metallic rim member and at least one reinforcing resin material. The annular metallic rim member includes an annular tire attachment portion adapted to have a tire mounted thereon, a first annular side wall portion, a second annular side wall portion and an inner annular wall portion connecting the first and second annular side wall portions with a plurality of spoke attachment openings formed in the inner annular wall portion. The at least one reinforcing resin material is attached to the annular metallic rim member such that the reinforcing resin material continuously extends from the first annular side wall portion across the inner annular wall portion to the second annular side wall portions to overlie exterior surface areas of the first and second annular side wall portions and exterior surface areas of the inner annular wall portion around the spoke attachment openings.
    Type: Grant
    Filed: March 3, 2006
    Date of Patent: December 16, 2008
    Assignee: Shimano Inc.
    Inventors: Shinpei Okajima, Takashi Yaegashi, Tsutomu Muraoka
  • Patent number: 7377595
    Abstract: A bicycle rim is provided with an annular metallic rim member and a reinforcing member. The annular metallic rim member has a plurality of spoke attachment arcas with at least one spoke attachment opening in each of the spoke attachment areas and a plurality of intermediate areas disposed between adjacent pairs of the spoke attachment areas. The reinforcing member extends circumferentially about the annular metallic rim member to overlie the spoke attachment areas of the annular metallic rim member. The reinforcing member has a plurality of discrete spoke attachment area reinforcing parts overlying a corresponding one of the spoke attachment areas of the annular metallic rim member. The reinforcing member also has a rim reinforcing part overlying the intermediate areas of the annular metallic rim member and at least partially overlying the discrete spoke attachment area reinforcing parts.
    Type: Grant
    Filed: February 28, 2007
    Date of Patent: May 27, 2008
    Assignee: Shimano Inc.
    Inventors: Shinpei Okajima, Tsutomu Muraoka, Takashi Yaegashi
  • Publication number: 20080106141
    Abstract: A bicycle rim is basically provided with an annular metallic rim member and a reinforcing member. The annular metallic rim member includes a plurality of spoke attachment areas with at least one spoke attachment opening in each of the spoke attachment areas. The reinforcing member overlies an exterior surface of the annular metallic rim member. The reinforcing member includes a plurality of spoke attachment sections individually arranged in a circumferential direction to overlie the spoke attachment openings. The spoke attachment sections include a plurality of discrete first reinforcing parts and a plurality of discrete second reinforcing parts. The first reinforcing parts are attached to the spoke attachment areas around the spoke attachment openings. The second reinforcing parts are attached to the spoke attachment areas to overlie the first reinforcing parts, with the second reinforcing parts being larger than the first reinforcing parts.
    Type: Application
    Filed: April 25, 2007
    Publication date: May 8, 2008
    Applicant: SHIMANO INC.
    Inventors: Tsutomu MURAOKA, Takashi YAEGASHI, Shinpei OKAJIMA
  • Patent number: 7350877
    Abstract: A bicycle rim is provided with an annular metallic rim member and reinforcing member. The annular metallic rim member has a plurality of spoke attachment areas with a spoke attachment opening in each of the spoke attachment areas. The reinforcing member extends circumferentially about the annular metallic rim member to overlie the spoke attachment areas of the annular metallic rim member. The reinforcing member has a plurality of spoke attachment sections overlying the spoke attachment areas, respectively, and a plurality of intermediate sections disposed between adjacent pairs of the spoke attachment sections, with the spoke attachment sections being thicker than the intermediate sections.
    Type: Grant
    Filed: November 3, 2006
    Date of Patent: April 1, 2008
    Assignee: Shimano Inc.
    Inventors: Tsutomu Muraoka, Takashi Yaegashi
  • Publication number: 20070205653
    Abstract: A bicycle rim is provided with an annular metallic rim member and at least one reinforcing resin material. The annular metallic rim member includes an annular tire attachment portion adapted to have a tire mounted thereon, a first annular side wall portion, a second annular side wall portion and an inner annular wall portion connecting the first and second annular side wall portions with a plurality of spoke attachment openings formed in the inner annular wall portion. The at least one reinforcing resin material is attached to the annular metallic rim member such that the reinforcing resin material continuously extends from the first annular side wall portion across the inner annular wall portion to the second annular side wall portions to overlie exterior surface areas of the first and second annular side wall portions and exterior surface areas of the inner annular wall portion around the spoke attachment openings.
    Type: Application
    Filed: March 3, 2006
    Publication date: September 6, 2007
    Applicant: Shimano Inc.
    Inventors: Shinpei Okajima, Takashi Yaegashi, Tsutomu Muraoka
  • Publication number: 20060234904
    Abstract: A method for preparing a novel crystalline polymorphic irinotecan hydrochloride which is excellent in the solubility in water and reduced in the content of impurities is provided. A method for preparing c-type crystals of irinotecan hydrochloride having diffraction peaks (2?) at 9.15°, 10.00°, 11.80°, 12.20°, 13.00° and 13.40° in the powder X-ray diffractometry characterized by mixing irinotecan with one or more solvents selected from the group consisting of acetone, acetonitrile and tetrahydrofuran, adding hydrochloric acid, and collecting the formed crystals.
    Type: Application
    Filed: February 24, 2004
    Publication date: October 19, 2006
    Applicants: KABUSHIKI KAISHA YAKULT HONSHA
    Inventors: Hideaki Shimizu, Atsuhiro Abe, Takashi Yaegashi, Seigo Sawada
  • Patent number: 6743918
    Abstract: Problem: A large scale production of camptothecin, which is a starting compound of irinotecan hydrochloride and various camptothecin derivatives, at a low cost and with ease. Solution: A process for preparing camptothecin, characterized in that it comprises the following steps (a) and (b); (a) the step to hydrolyze 9-methoxycamptothecin or a natural material containing 9-methoxycamptothecin; (b) the step to convert 9-hydroxycamptothecin obtained in the step (a) into camptothecin by 9-O—perfluoro-lower-alkylsulfonylation or 9-O—phenyltetrazolylation, followed by hydrogenolysis.
    Type: Grant
    Filed: November 25, 2002
    Date of Patent: June 1, 2004
    Assignee: Kabushiki Kaisha Yakult Honsha
    Inventors: Takashi Yaegashi, Takanori Ogawa, Seigo Sawada
  • Publication number: 20040087609
    Abstract: Problem: A large scale production of camptothecin, which is a starting compound of irinotecan hydrochloride and various camptothecin derivatives, at a low cost and with ease.
    Type: Application
    Filed: November 25, 2002
    Publication date: May 6, 2004
    Inventors: Takashi Yaegashi, Takanori Ogawa, Seigo Sawada