Patents by Inventor Yasutaka Baba

Yasutaka Baba 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: 11925492
    Abstract: A non-transitory computer-readable recording medium having stored an image processing program that causes a computer to execute a process, the process includes extracting a plurality of consecutive pixels corresponding to a first part or a second part of a body, from a pixel column in a predetermined direction of an image of the body, obtaining a statistical value of pixel values of the plurality of consecutive pixels, and identifying a part corresponding to the plurality of consecutive pixels, among the first part or the second part, based on the statistical value.
    Type: Grant
    Filed: February 3, 2021
    Date of Patent: March 12, 2024
    Assignee: FUJITSU LIMITED
    Inventors: Yasutaka Moriwaki, Hiroaki Takebe, Nobuhiro Miyazaki, Takayuki Baba
  • Publication number: 20200308105
    Abstract: A novel method for production of hydroxamic acid derivative using a compound represented by the formula [12] as an intermediate, and intermediate therefor. wherein R1 represents a methyl group or the like; R2 represents a methyl group or the like; and R5 represents a hydrogen atom or the like.
    Type: Application
    Filed: March 30, 2017
    Publication date: October 1, 2020
    Applicant: FUJIFILM Toyama Chemical Co., Ltd.
    Inventors: Yusuke NAGATO, Yasutaka BABA
  • Publication number: 20200308103
    Abstract: Crystals of (2S)-2-((4-((4-((1S)-1,2-dihydroxyethyl)phenyl)ethynyl)benzoyl)(methyl)amino)-N-hydroxy-N?,2-dimethylmalonamide having diffraction peaks at diffraction angles (2?) of 3.8±0.2°, 7.7±0.2°, and 10.8±0.2°, etc., or 8.2±0.2°, 12.4±0.2°, and 13.3±0.2°, etc., in powder X-ray diffraction, a production method thereof, and a pharmaceutical composition.
    Type: Application
    Filed: March 30, 2017
    Publication date: October 1, 2020
    Applicant: TOYAMA CHEMICAL CO., LTD.
    Inventors: Yasutaka BABA, Yusuke NAGATO, Yu KOSEKI
  • Patent number: 9896471
    Abstract: A superior antitumor agent is provided. A salt of 1-(2-deoxy-2-fluoro-4-thio-?-D-arabinofuranosyl)cytosine shows at least one or more of such characteristics as (1) it has superior antitumor activity, (2) it shows superior crystallinity, (3) it shows high water solubility, (4) it does not show deliquescent property, (5) it shows superior flowability, (6) it shows superior tableting property, (7) it can be manufactured with less environmental load, and (8) it can be manufactured in a large scale, and therefore it is useful as a bulk drug for medicaments.
    Type: Grant
    Filed: September 26, 2014
    Date of Patent: February 20, 2018
    Assignee: FUJIFILM Corporation
    Inventors: Yasutaka Baba, Tatsuya Murakami, Junko Shintani
  • Patent number: 9051310
    Abstract: The object of the present invention is to provide a compound and a pharmaceutical composition having excellent Syk inhibitory activity. According to the present invention, a nicotinamide derivative represented by the following formula (I) or a salt thereof is provided, wherein R1 is a substituent represented by the following formula (II-1), (III-1), or (IV-1) (wherein R3, R4, R5, n, and X1 have the same definitions as those described in the specification), and R2 is a pyridyl, indazolyl, phenyl, pyrazolopyridyl, benzisoxazolyl, pyrimidinyl, or quinolyl group, each of which optionally has at least one substituent.
    Type: Grant
    Filed: June 27, 2014
    Date of Patent: June 9, 2015
    Assignee: FUJIFILM Corporation
    Inventors: Hideyasu Fujiwara, Shinsuke Mizumoto, Yohei Kubo, Hiyoku Nakata, Shinji Hagiwara, Yasutaka Baba, Takashi Tamura, Hidenobu Kuniyoshi, Tomoyuki Mashiko, Mari Yamamoto
  • Publication number: 20150011499
    Abstract: A superior antitumor agent is provided. A salt of 1-(2-deoxy-2-fluoro-4-thio-?-D-arabinofuranosyl)cytosine shows at least one or more of such characteristics as (1) it has superior antitumor activity, (2) it shows superior crystallinity, (3) it shows high water solubility, (4) it does not show deliquescent property, (5) it shows superior flowability, (6) it shows superior tableting property, (7) it can be manufactured with less environmental load, and (8) it can be manufactured in a large scale, and therefore it is useful as a bulk drug for medicaments.
    Type: Application
    Filed: September 26, 2014
    Publication date: January 8, 2015
    Applicant: FUJIFILM Corporation
    Inventors: Yasutaka BABA, Tatsuya MURAKAMI, Junko SHINTANI
  • Patent number: 8895585
    Abstract: An object of the present invention is to provide to a compound and a pharmaceutical composition, which have excellent Syk-inhibitory activity. The present invention provides a nicotinamide derivative represented by the following formula (I) (wherein R1 represents a halogen atom; R2 represents a C1-12 alkyl group, a C2-12 alkenyl group, a C2-12 alkynyl group, a C3-8 cycloalkyl group, an aryl group, an ar-C1-6 alkyl group or a heterocyclic group, each optionally having at least one substituent; R3 represents an aryl group or a heterocyclic group each optionally having at least one substituent; and R4 and R5 each independently represent a hydrogen atom; and R2 and R4 may form a cyclic amino group optionally having at least one substituent together with the nitrogen atom to which they bind) or a salt thereof, and a pharmaceutical composition for use in the treatment of a Syk-related disease which comprises the nicotinamide derivative or a salt thereof.
    Type: Grant
    Filed: December 28, 2012
    Date of Patent: November 25, 2014
    Assignee: FUJIFILM Corporation
    Inventors: Hideyasu Fujiwara, Kimihiko Sato, Shinsuke Mizumoto, Yuichiro Sato, Hideki Kurihara, Yohei Kubo, Hiyoku Nakata, Yasutaka Baba, Takashi Tamura, Hidenobu Kuniyoshi, Shinji Hagiwara, Mari Yamamoto
  • Publication number: 20140309225
    Abstract: The object of the present invention is to provide a compound and a pharmaceutical composition having excellent Syk inhibitory activity. According to the present invention, a nicotinamide derivative represented by the following formula (I) or a salt thereof is provided, wherein R1 is a substituent represented by the following formula (II-1), (III-1), or (IV-1) (wherein R3, R4, R5, n, and X1 have the same definitions as those described in the specification), and R2 is a pyridyl, indazolyl, phenyl, pyrazolopyridyl, benzisoxazolyl, pyrimidinyl, or quinolyl group, each of which optionally has at least one substituent.
    Type: Application
    Filed: June 27, 2014
    Publication date: October 16, 2014
    Applicant: FUJIFILM Corporation
    Inventors: Hideyasu FUJIWARA, Shinsuke MIZUMOTO, Yohei KUBO, Hiyoku NAKATA, Shinji HAGIWARA, Yasutaka BABA, Takashi TAMURA, Hidenobu KUNIYOSHI, Tomoyuki MASHIKO, Mari YAMAMOTO
  • Patent number: 8809371
    Abstract: An object of the present invention is to provide to a compound and a pharmaceutical composition, which have excellent Syk-inhibitory activity. The present invention provides a nicotinamide derivative represented by the following formula (I) (wherein R1 represents a halogen atom; R2 represents a C1-12 alkyl group, a C2-12 alkenyl group, a C2-12 alkynyl group, a C3-8 cycloalkyl group, an aryl group, an ar-C1-6 alkyl group or a heterocyclic group, each optionally having at least one substituent; R3 represents an aryl group or a heterocyclic group each optionally having at least one substituent; and R4 and R5 each independently represent a hydrogen atom; and R2 and R4 may form a cyclic amino group optionally having at least one substituent together with the nitrogen atom to which they bind) or a salt thereof, and a pharmaceutical composition for use in the treatment of a Syk-related disease which comprises the nicotinamide derivative or a salt thereof.
    Type: Grant
    Filed: December 28, 2012
    Date of Patent: August 19, 2014
    Assignee: FUJIFILM Corporation
    Inventors: Hideyasu Fujiwara, Kimihiko Sato, Shinsuke Mizumoto, Yuichiro Sato, Hideki Kurihara, Yohei Kubo, Hiyoku Nakata, Yasutaka Baba, Takashi Tamura, Hidenobu Kuniyoshi, Shinji Hagiwara, Mari Yamamoto
  • Patent number: 8772320
    Abstract: An object of the present invention is to provide to a compound and a pharmaceutical composition, which have excellent Syk-inhibitory activity. The present invention provides a nicotinamide derivative represented by the following formula (I) (wherein R1 represents a halogen atom; R2 represents a C1-12 alkyl group, a C2-12 alkenyl group, a C2-12 alkynyl group, a C3-8 cycloalkyl group, an aryl group, an ar-C1-6 alkyl group or a heterocyclic group, each optionally having at least one substituent; R3 represents an aryl group or a heterocyclic group each optionally having at least one substituent; and R4 and R5 each independently represent a hydrogen atom; and R2 and R4 may form a cyclic amino group optionally having at least one substituent together with the nitrogen atom to which they bind) or a salt thereof, and a pharmaceutical composition for use in the treatment of a Syk-related disease which comprises the nicotinamide derivative or a salt thereof.
    Type: Grant
    Filed: December 28, 2012
    Date of Patent: July 8, 2014
    Assignee: FUJIFILM Corporation
    Inventors: Hideyasu Fujiwara, Kimihiko Sato, Shinsuke Mizumoto, Yuichiro Sato, Hideki Kurihara, Yohei Kubo, Hiyoku Nakata, Yasutaka Baba, Takashi Tamura, Hidenobu Kuniyoshi, Shinji Hagiwara, Mari Yamamoto
  • Publication number: 20130116430
    Abstract: An object of the present invention is to provide to a compound and a pharmaceutical composition, which have excellent Syk-inhibitory activity. The present invention provides a nicotinamide derivative represented by the following formula (I) (wherein R1 represents a halogen atom; R2 represents a C1-12 alkyl group, a C2-12 alkenyl group, a C2-12 alkynyl group, a C3-8 cycloalkyl group, an aryl group, an ar-C1-6 alkyl group or a heterocyclic group, each optionally having at least one substituent; R3 represents an aryl group or a heterocyclic group each optionally having at least one substituent; and R4 and R5 each independently represent a hydrogen atom; and R2 and R4 may form a cyclic amino group optionally having at least one substituent together with the nitrogen atom to which they bind) or a salt thereof, and a pharmaceutical composition for use in the treatment of a Syk-related disease which comprises the nicotinamide derivative or a salt thereof.
    Type: Application
    Filed: December 28, 2012
    Publication date: May 9, 2013
    Applicant: FUJIFILM CORPORATION
    Inventors: Hideyasu FUJIWARA, Kimihiko SATO, Shinsuke MIZUMOTO, Yuichiro SATO, Hideki KURIHARA, Yohei KUBO, Hiyoku NAKATA, Yasutaka BABA, Takashi TAMURA, Hidenobu KUNIYOSHI, Shinji HAGIWARA, Mari YAMAMOTO
  • Patent number: 8354426
    Abstract: Disclosed is 1-(2-(4-((2,3-dihydro(1,4)dioxino(2,3-c)pyridin-7-ylmethyl)amino)piperidin-1-yl)ethyl)-7-fluoro-1,5-naphthyridin-2(1H)-one monohydrate, which has strong antibacterial activity. The compound is highly safe and useful as an original drug for pharmaceutical preparations. Also disclosed is a method which is useful for producing 1-(2-(4-((2,3-dihydro(1,4)dioxino(2,3-c)pyridin-7-ylmethyl)amino)piperidin-1-yl)ethyl)-7-fluoro-1,5-naphthyridin-2(1H)-one monohydrate.
    Type: Grant
    Filed: November 25, 2008
    Date of Patent: January 15, 2013
    Assignees: Toyama Chemical Co., Ltd., Taisho Pharmaceutical Co., Ltd.
    Inventors: Taro Kiyoto, Masahiro Takebayashi, Yasutaka Baba, Muneo Syoji, Toshiya Noguchi, Fumihito Ushiyama, Hiroki Urabe, Hiromasa Horikiri
  • Patent number: 7977492
    Abstract: The crystal of 3-{5-[4-(cyclopentyloxy)-2-hydroxybenzoyl]-2-[(3-hydroxy-1,2-benzisoxazol-6-yl)methoxy]phenyl}propionic acid having peaks at the position of 14.0, 16.0, 23.3, 23.7 and 26.3° and the crystal of 3-{5-[4-(cyclopentyloxy)-2-hydroxybenzoyl]-2-[(3-hydroxy-1,2-benzisoxazol-6-yl)methoxy]phenyl}propionic acid having peaks at the position of 14.6, 23.1, 24.7, 25.6 and 26.0° on 2? of diffraction angle in a powder X-ray diffraction pattern have a small specific volume, are hard to be charged with electricity, are easily handled and are useful for an active pharmaceutical ingredient of excellent anti-rheumatic agents.
    Type: Grant
    Filed: May 25, 2007
    Date of Patent: July 12, 2011
    Assignee: Toyama Chemical Co., Ltd.
    Inventors: Kenji Yonezawa, Hironori Kotsubo, Yasutaka Baba, Yukie Tada
  • Publication number: 20100249417
    Abstract: Disclosed is 1-(2-(4-((2,3-dihydro(1,4)dioxino(2,3-c)pyridin-7-ylmethyl)amino)piperidin-1-yl)ethyl)-7-fluoro-1,5-naphthyridin-2(1H)-one monohydrate, which has strong antibacterial activity. The compound is highly safe and useful as an original drug for pharmaceutical preparations. Also disclosed is a method which is useful for producing 1-(2-(4-((2,3-dihydro(1,4)dioxino(2,3-c)pyridin-7-ylmethyl)amino)piperidin-1-yl)ethyl)-7-fluoro-1,5-naphthyridin-2(1H)-one monohydrate.
    Type: Application
    Filed: November 25, 2008
    Publication date: September 30, 2010
    Applicants: Toyama Chemical Co., Ltd., Taisho Pharmaceutical Co., Ltd.
    Inventors: Taro Kiyoto, Masahiro Takebayashi, Yasutaka Baba, Muneo Syoji, Toshiya Noguchi, Fumihito Ushiyama, Hiroki Urabe, Hiromasa Horikiri
  • Publication number: 20090275757
    Abstract: The crystal of 3-{5-[4-(cyclopentyloxy)-2-hydroxybenzoyl]-2-[(3-hydroxy-1,2-benzisoxazol-6-yl)methoxy]phenyl}propionic acid having peaks at the position of 14.0, 16.0, 23.3, 23.7 and 26.3° and the crystal of 3-{5-[4-(cyclopentyloxy)-2-hydroxybenzoyl]-2-[(3-hydroxy-1,2-benzisoxazol-6-yl)methoxy]phenyl}propionic acid having peaks at the position of 14.6, 23.1, 24.7, 25.6 and 26.0° on 2? of diffraction angle in a powder X-ray diffraction pattern have a small specific volume, are hard to be charged with electricity, are easily handled and are useful for an active pharmaceutical ingredient of excellent anti-rheumatic agents.
    Type: Application
    Filed: May 25, 2007
    Publication date: November 5, 2009
    Applicant: Toyama chemical Co., Ltd
    Inventors: Kenji Yonezawa, Hironori Kotsubo, Yasutaka Baba, Yukie Tada