Patents by Inventor Kenshi Yoshida

Kenshi Yoshida 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: 11498916
    Abstract: A number of crystalline forms of N-(2-((6-(3-(2,6-dichloro-3,5-dimethoxyphenyl)-1-methylureido)pyrimidin-4-yl)amino)-5-(4-ethylpiperazin-1-y1)phenyl)acrylamide are provided. These include a crystalline free base form, a crystalline monohydrochloride salt form, a crystalline dihydrochloride salt form, and a crystalline ethanesulfonate salt form. Methods of making and using crystalline compounds are also provided.
    Type: Grant
    Filed: December 20, 2019
    Date of Patent: November 15, 2022
    Assignee: EISAI R&D MANAGEMENT CO., LTD.
    Inventors: George Moniz, Kristen Sanders, Arani Chanda, Kenshi Yoshida, Ming-Hong Hao, Dominic Reynolds, Sudeep Prajapati, Anand Selvaraj, Takashi Satoh, John Wang
  • Patent number: 11420980
    Abstract: Salts of the compound represented by formula (I) or crystals thereof have a potential use as drug substances for pharmaceuticals.
    Type: Grant
    Filed: September 15, 2020
    Date of Patent: August 23, 2022
    Assignee: Eisai R&D Management Co., Ltd.
    Inventors: Kenshi Yoshida, Yoshiaki Ohashi, Tamaki Hoshikawa, Nobuaki Sato, Ikuo Kushida
  • Publication number: 20210024541
    Abstract: Salts of the compound represented by formula (I) or crystals thereof have a potential use as drug substances for pharmaceuticals.
    Type: Application
    Filed: September 15, 2020
    Publication date: January 28, 2021
    Applicant: Eisai R&D Management Co., Ltd.
    Inventors: Kenshi Yoshida, Yoshiaki Ohashi, Tamaki Hoshikawa, Nobuaki Sato, Ikuo Kushida
  • Publication number: 20200317645
    Abstract: A number of crystalline forms of N-(2-((6-(3-(2,6-dichloro-3,5-dimethoxyphenyl)-1-methylureido)pyrimidin-4-yl)amino)-5-(4-ethylpiperazin-1-y1)phenyl)acrylamide are provided. These include a crystalline free base form, a crystalline monohydrochloride salt form, a crystalline dihydrochloride salt form, and a crystalline ethanesulfonate salt form. Methods of making and using crystalline compounds are also provided.
    Type: Application
    Filed: December 20, 2019
    Publication date: October 8, 2020
    Applicant: Eisai R&D Management Co., Ltd.
    Inventors: George MONIZ, Kristen SANDERS, Arani CHANDA, Kenshi YOSHIDA
  • Patent number: 10562888
    Abstract: A number of crystalline forms of N-(2-((6-(3-(2,6-dichloro-3,5-dimethoxyphenyl)-1-methylureido)pyrimidin-4-yl)amino)-5-(4-ethylpiperazin-1-yl)phenyl)acrylamide are provided. These include a crystalline free base form, a crystalline monohydrochloride salt form, a crystalline dihydrochloride salt form, and a crystalline ethanesulfonate salt form. Methods of making and using crystalline compounds are also provided.
    Type: Grant
    Filed: April 13, 2016
    Date of Patent: February 18, 2020
    Assignee: Eisai R&D Management Co., LTD.
    Inventors: George Moniz, Kristen Sanders, Arani Chanda, Kenshi Yoshida
  • Patent number: 9951047
    Abstract: The present invention provides salts consisting of an organocarboxylic acid selected from the group consisting of succinic acid and maleic acid and a compound represented by formula (I) and crystals thereat which can be used as bulk materials for pharmaceuticals.
    Type: Grant
    Filed: August 17, 2015
    Date of Patent: April 24, 2018
    Assignee: Eisai R&D Management Co., Ltd.
    Inventors: Shunsuke Ozaki, Kenshi Yoshida
  • Publication number: 20180093972
    Abstract: A number of crystalline forms of N-(2-((6-(3-(2,6-dichloro-3,5-dimethoxyphenyl)-1-methylureido)pyrimidin-4-yl)amino)-5-(4-ethylpiperazin-1-yl)phenyl)acrylamide are provided. These include a crystalline free base form, a crystalline monohydrochloride salt form, a crystalline dihydrochloride salt form, and a crystalline ethanesulfonate salt form. Methods of making and using crystalline compounds are also provided.
    Type: Application
    Filed: April 13, 2016
    Publication date: April 5, 2018
    Applicant: Eisai R&D Management Co., Ltd.
    Inventors: George MONIZ, Kristen SANDERS, Arani CHANDA, Kenshi YOSHIDA
  • Publication number: 20170217935
    Abstract: The present invention provides salts consisting of an organocarboxylic acid selected from the group consisting of succinic acid and maleic acid and a compound represented by formula (I) and crystals thereat which can be used as bulk materials for pharmaceuticals.
    Type: Application
    Filed: August 17, 2015
    Publication date: August 3, 2017
    Inventors: Shunsuke Ozaki, Kenshi Yoshida
  • Patent number: 9550732
    Abstract: An organic carboxylic acid salt of 2-[(3S,4R)-1-{[2-chloro-6-(trifluoromethyl)phenyl]methyl}-3-{[1-(cyclohex-1-en-1-ylmethyl) piperidin-4-yl]carbamoyl}-4-methylpyrrolidin-3-yl]acetic acid and a crystal thereof.
    Type: Grant
    Filed: March 10, 2014
    Date of Patent: January 24, 2017
    Assignee: Eisai R&D Management Co., Ltd.
    Inventors: Kenshi Yoshida, Ikuo Kushida
  • Patent number: 9334239
    Abstract: The invention provides an amorphous form of 4-(3-chloro-4-(cyclopropylaminocarbonyl)aminophenoxy)-7-methoxy-6-quinolinecarboxamide.
    Type: Grant
    Filed: December 19, 2013
    Date of Patent: May 10, 2016
    Assignee: Eisai R&D Management Co., Ltd.
    Inventors: Masaharu Gotoda, Kenshi Yoshida, Nao Shibuguchi
  • Publication number: 20160002165
    Abstract: An organic carboxylic acid salt of 2-[(3S,4R)-1-{[2-chloro-6-(trifluoromethyl)phenyl]methyl}-3-{[1-(cyclohex-1-en-1-ylmethyl) piperidin-4-yl]carbamoyl}-4-methylpyrrolidin-3-yl]acetic acid and a crystal thereof.
    Type: Application
    Filed: March 10, 2014
    Publication date: January 7, 2016
    Inventors: Kenshi Yoshida, Ikuo Kushida
  • Patent number: 9215887
    Abstract: The objects of the present invention are to provide a method for inhibiting the coloration of a syrupy sweetener, comprising a reducing saccharide together with a non-reducing oligosaccharide having a ?-fructofuranosidic linkage, without deteriorating the taste inherent to the syrupy sweetener; and to provide a syrupy sweetener, comprising a reducing saccharide together with a non-reducing oligosaccharide having a ?-fructofuranosidic linkage, which is stabilized by the method. The present invention attains the above objects by providing a method for inhibiting the coloring of a syrupy sweetener, comprising a reducing saccharide together with a non-reducing oligosaccharide having a ?-fructofuranosidic linkage, which comprises a step of incorporating a lactate into the syrupy sweetener, and by providing a syrupy sweetener, comprising a reducing saccharide together with a non-reducing oligosaccharide having a ?-fructofuranosidic linkage, which is stabilized by the method.
    Type: Grant
    Filed: April 27, 2009
    Date of Patent: December 22, 2015
    Assignee: HAYASHIBARA CO., LTD.
    Inventors: Kenshi Yoshida, Ikuo Sawatani, Hiroto Chaen, Shigeharu Fukuda, Toshio Miyake
  • Publication number: 20150291532
    Abstract: The invention provides an amorphous form of 4-(3-chloro-4-(cyclopropylaminocarbonyl)aminophenoxy)-7-methoxy-6-quinolinecarboxamide.
    Type: Application
    Filed: December 19, 2013
    Publication date: October 15, 2015
    Inventors: Masaharu Gotoda, Kenshi Yoshida, Nao Shibuguchi
  • Publication number: 20110045137
    Abstract: The objects of the present invention are to provide a method for inhibiting the coloration of a syrupy sweetener, comprising a reducing saccharide together with a non-reducing oligosaccharide having a ?-fructofuranosidic linkage, without deteriorating the taste inherent to the syrupy sweetener; and to provide a syrupy sweetener, comprising a reducing saccharide together with a non-reducing oligosaccharide having a ?-fructofuranosidic linkage, which is stabilized by the method. The present invention attains the above objects by providing a method for inhibiting the coloring of a syrupy sweetener, comprising a reducing saccharide together with a non-reducing oligosaccharide having a ?-fructofuranosidic linkage, which comprises a step of incorporating a lactate into the syrupy sweetener, and by providing a syrupy sweetener, comprising a reducing saccharide together with a non-reducing oligosaccharide having a ?-fructofuranosidic linkage, which is stabilized by the method.
    Type: Application
    Filed: April 27, 2009
    Publication date: February 24, 2011
    Inventors: Kenshi Yoshida, Ikuo Sawatani, Hiroto Chaen, Shigeharu Fukuda, Toshio Miyake
  • Patent number: 6591790
    Abstract: A support fitting for the heat-resistant block to protect boiler tubes, which protrudes upward at a right angle from the surface of the rib between two boiler tubes, and which is welded on the rib and has a catch to engage with the heat-resistant block on the end. The support fitting is provided with a welding surface to be welded on the rib and shaped narrower by chamfering, and a single globule of a deoxidizing conductive material used as flux is attached to the narrowed welding surface, and is a vertical piece or rod which extends a fixed distance perpendicular from the rib. The support fitting includes a first upper surface being kept horizontal to support a ferrule, which can tightly engage with the ferrule for arc stud welding, thereby the ferrule can shield the welding surface, and a second upper surface which engages with the heat-resistant block.
    Type: Grant
    Filed: October 22, 2001
    Date of Patent: July 15, 2003
    Assignee: Mitsubishi Heavy Industries, Ltd.
    Inventors: Keita Inoue, Ryuta Maruyama, Minoru Ike, Kenshi Yoshida
  • Publication number: 20030033990
    Abstract: The objective of this invention is to provide a support fitting for a heat-resistant block to protect boiler tubes which can be easily and reliably stud-welded without losing any of its function as a support fitting. The support fitting according to this invention is used to attach to the heat-resistant block to protect boiler tubes. It protrudes upward at a right angle from the surface of the rib between two boiler tubes, and it is welded on the rib. The support fitting has a catch to engage with the heat-resistant block on its end. The support fitting according to this invention is distinguished by the fact that the welding surface of the support fitting to the rib is shaped narrower, and by the fact that a single globule of a deoxidizing conductive material used as flux is attached to the narrowed welding surface.
    Type: Application
    Filed: October 22, 2001
    Publication date: February 20, 2003
    Inventors: Keita Inoue, Ryuta Maruyama, Minoru Ike, Kenshi Yoshida