Patents by Inventor Hideaki Fujisaki

Hideaki Fujisaki 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: 20230068581
    Abstract: A high-precision marker, which is easy to manufacture, has a base material layer, a first layer which is laminated onto one surface of the base material layer, and which is observed in a first color, and a second layer which is partially laminated onto the first layer, is observed in a second color different from the first color, and partially conceals the first layer, wherein the first layer is observable in a region in which the second layer is not laminated, and the second layer is formed by a resist material.
    Type: Application
    Filed: January 29, 2021
    Publication date: March 2, 2023
    Applicant: DAI NIPPON PRINTING CO., LTD.
    Inventors: Tadashi FURUKAWA, Koujiro OOKAWA, Yukio TANIGUCHI, Hideaki FUJISAKI, Keiji KASHIMA
  • Patent number: 8124780
    Abstract: A novel chemical compound useful as a therapeutic or prophylactic agent for acid-related diseases is provided, which has an excellent inhibitory effect against gastric acid secretion, an excellent effect of maintaining the inhibitory effect against gastric acid secretion, thereby maintaining intragastric pH high for a long time, and having more safety and appropriate physicochemical stability. Provided is a compound represented by where R1 and R3 may be the same or different and each represent a hydrogen atom or a C1-C6 alkyl group; R2 represents (5,5-dimethyl-1,3-dioxan-2-yl)methoxy group, 5,7-dioxaspiro[2.5]oct-6-ylmethoxy group, 1,5,9-trioxaspiro[5.5]undec-3-ylmethoxy group, or (2,2-dimethyl-1,3-dioxan-5-yl)methoxy group; R4, R5, R6 and R7 represent a hydrogen atom, halogen atom, C1-C6 alkyl group, C1-C6 haloalkyl group, C1-C6 alkoxy group or C1-C6 haloalkoxy group; and W1 represents a single bond, methylene or ethylene group, a salt thereof or a solvate of these.
    Type: Grant
    Filed: August 11, 2008
    Date of Patent: February 28, 2012
    Assignee: Eisai R&D Management Co., Ltd.
    Inventors: Shuhei Miyazawa, Masanobu Shinoda, Tetsuya Kawahara, Nobuhisa Watanabe, Hitoshi Harada, Daisuke Iida, Hiroki Terauchi, Junichi Nagakawa, Hideaki Fujisaki, Atsuhiko Kubota, Masato Ueda
  • Patent number: 7781452
    Abstract: A compound represented by the following general formula (1), or a salt or hydrate thereof: [Formula 1] wherein R1 represents a C1-C6 alkyl group or C2-C6 alkynyl group which may be substituted, or a phenyl group which may be substituted, R2 represents a hydrogen atom or a C1-C6 alkyl group, R3 represents methyl or ethyl group, R4 represents a C1-C6 alkyl group, R5 represents a hydrogen atom, provided that a compound wherein R1 is a C1-C6 alkyl group unsubstituted or substituted with a halogen atom and R2 is a hydrogen atom is excluded.
    Type: Grant
    Filed: March 22, 2006
    Date of Patent: August 24, 2010
    Assignee: Eisai R&D Management Co., Ltd.
    Inventors: Shuhei Miyazawa, Hitoshi Harada, Hideaki Fujisaki, Atsuhiko Kubota, Kotaro Kodama, Junichi Nagakawa, Kiyoshi Oketani, Nobuhisa Watanabe
  • Publication number: 20090203911
    Abstract: A novel chemical compound useful as a therapeutic or prophylactic agent for acid-related diseases is provided, which has an excellent inhibitory effect against gastric acid secretion, an excellent effect of maintaining the inhibitory effect against gastric acid secretion, thereby maintaining intragastric pH high for a long time, and having more safety and appropriate physicochemical stability. Provided is a compound represented by where R1 and R3 may be the same or different and each represent a hydrogen atom or a C1-C6 alkyl group; R2 represents (5,5-dimethyl-1,3-dioxan-2-yl)methoxy group, 5,7-dioxaspiro[2.5]oct-6-ylmethoxy group, 1,5,9-trioxaspiro[5.5]undec-3-ylmethoxy group, or (2,2-dimethyl-1,3-dioxan-5-yl)methoxy group; R4, R5, R6 and R7 represent a hydrogen atom, halogen atom, C1-C6 alkyl group, C1-C6 haloalkyl group, C1-C6 alkoxy group or C1-C6 haloalkoxy group; and W1 represents a single bond, methylene or ethylene group, a salt thereof or a solvate of these.
    Type: Application
    Filed: August 11, 2008
    Publication date: August 13, 2009
    Inventors: Shuhei MIYAZAWA, Masanobu Shinoda, Tetsuya Kawahara, Nobuhisa Watanabe, Hitoshi Harada, Daisuke Iida, Hiroki Terauchi, Junichi Nagakawa, Hideaki Fujisaki, Atsuhiko Kubota, Masato Ueda
  • Patent number: 7425634
    Abstract: An object of the present invention is to provide a novel chemical compound useful as a therapeutic or prophylactic agent for acid-related diseases, having an excellent inhibitory effect against gastric acid secretion, an excellent effect of maintaining the inhibitory effect against gastric acid secretion, thereby maintaining intragastric pH high for a long time, and having more safety and appropriate physicochemical stability. Provided is a compound represented by where R1 and R3 may be the same or different and each represent a hydrogen atom or a C1-C6 alkyl group; R2 represents (5,5-dimethyl-1,3-dioxan-2-yl)methoxy group, 5,7-dioxaspiro[2.5]oct-6-ylmethoxy group, 1,5,9-trioxaspiro[5.5]undec-3-ylmethoxy group, or (2,2-dimethyl-1,3-dioxan-5-yl)methoxy group; R4, R5, R6 and R7 represent a hydrogen atom, halogen atom, C1-C6 alkyl group, C1-C6 haloalkyl group, C1-C6 alkoxy group or C1-C6 haloalkoxy group; and W1 represents a single bond, methylene or ethylene group, a salt thereof or a solvate of these.
    Type: Grant
    Filed: September 14, 2006
    Date of Patent: September 16, 2008
    Assignee: Eisai R&D Management Co., Ltd.
    Inventors: Shuhei Miyazawa, Masanobu Shinoda, Tetsuya Kawahara, Nobuhisa Watanabe, Hitoshi Harada, Daisuke Iida, Hiroki Terauchi, Junichi Nagakawa, Hideaki Fujisaki, Atsuhiko Kubota, Masato Ueda
  • Publication number: 20070015782
    Abstract: An object of the present invention is to provide a novel chemical compound useful as a therapeutic or prophylactic agent for acid-related diseases, having an excellent inhibitory effect against gastric acid secretion, an excellent effect of maintaining the inhibitory effect against gastric acid secretion, thereby maintaining intragastric pH high for a long time, and having more safety and appropriate physicochemical stability. Provided is a compound represented by where R1 and R3 may be the same or different and each represent a hydrogen atom or a C1-C6 alkyl group; R2 represents (5,5-dimethyl-1,3-dioxan-2-yl)methoxy group, 5,7-dioxaspiro[2.5]oct-6-ylmethoxy group, 1,5,9-trioxaspiro[5.5]undec-3-ylmethoxy group, or (2,2-dimethyl-1,3-dioxan-5-yl)methoxy group; R4, R5, R6 and R7 represent a hydrogen atom, halogen atom, C1-C6 alkyl group, C1-C6 haloalkyl group, C1-C6 alkoxy group or C1-C6 haloalkoxy group; and W1 represents a single bond, methylene or ethylene group, a salt thereof or a solvate of these.
    Type: Application
    Filed: April 14, 2006
    Publication date: January 18, 2007
    Inventors: Shuhei Miyazawa, Masanobu Shinoda, Tetsuya Kawahara, Nobuhisa Watanabe, Hitoshi Harada, Daisuke Iida, Hiroki Terauchi, Junichi Nagakawa, Hideaki Fujisaki, Atsuhiko Kubota, Masato Ueda
  • Publication number: 20070010542
    Abstract: An object of the present invention is to provide a novel chemical compound useful as a therapeutic or prophylactic agent for acid-related diseases, having an excellent inhibitory effect against gastric acid secretion, an excellent effect of maintaining the inhibitory effect against gastric acid secretion, thereby maintaining intragastric pH high for a long time, and having more safety and appropriate physicochemical stability. Provided is a compound represented by where R1 and R3 may be the same or different and each represent a hydrogen atom or a C1-C6 alkyl group; R2 represents (5,5-dimethyl-1,3-dioxan-2-yl)methoxy group, 5,7-dioxaspiro[2.5]oct-6-ylmethoxy group, 1,5,9-trioxaspiro[5.5]undec-3-ylmethoxy group, or (2,2-dimethyl-1,3-dioxan-5-yl)methoxy group; R4, R5, R6 and R7 represent a hydrogen atom, halogen atom, C1-C6 alkyl group, C1-C6 haloalkyl group, C1-C6 alkoxy group or C1-C6 haloalkoxy group; and W1 represents a single bond, methylene or ethylene group, a salt thereof or a solvate of these.
    Type: Application
    Filed: September 14, 2006
    Publication date: January 11, 2007
    Inventors: Shuhei Miyazawa, Masanobu Shinoda, Tetsuya Kawahara, Nobuhisa Watanabe, Hitoshi Harada, Daisuke Iida, Hiroki Terauchi, Junichi Nagakawa, Hideaki Fujisaki, Atsuhiko Kubota, Masato Ueda
  • Publication number: 20060167041
    Abstract: A compound represented by the following general formula (1), or a salt or hydrate thereof: [Formula 1] wherein R1 represents a C1-C6 alkyl group or C2-C6 alkynyl group which may be substituted, or a phenyl group which may be substituted, R2 represents a hydrogen atom or a C1-C6 alkyl group, R3 represents methyl or ethyl group, R4 represents a C1-C6 alkyl group, R5 represents a hydrogen atom, provided that a compound wherein R1 is a C1-C6 alkyl group unsubstituted or substituted with a halogen atom and R2 is a hydrogen atom is excluded.
    Type: Application
    Filed: March 22, 2006
    Publication date: July 27, 2006
    Inventors: Shuhei Miyazawa, Hitoshi Harada, Hideaki Fujisaki, Atsuhiko Kubota, Kotaro Kodama, Junichi Nagakawa, Kiyoshi Oketani, Nobuhisa Watanabe
  • Publication number: 20050272764
    Abstract: A compound represented by the following general formula (1), or a salt or hydrate thereof: wherein R1 represents a C1-C6 alkyl group or C2-C6 alkynyl group which may be substituted, or a phenyl group which may be substituted, R2 represents a hydrogen atom or a C1-C6 alkyl group, R3 represents methyl or ethyl group, R4 represents a C1-C6 alkyl group, R5 represents a hydrogen atom, provided that a compound wherein R1 is a C1-C6 alkyl group unsubstituted or substituted with a halogen atom and R2 is a hydrogen atom is excluded.
    Type: Application
    Filed: April 21, 2005
    Publication date: December 8, 2005
    Inventors: Shuhei Miyazawa, Hitoshi Harada, Hideaki Fujisaki, Atsuhiko Kubota, Kotaro Kodama, Junichi Nagakawa, Kiyoshi Oketani, Nobuhisa Watanabe
  • Patent number: 5998445
    Abstract: Pyridine derivatives useful for preventing or treating peptic ulcers, pharmaceutical preparations and methods of treating peptic ulcers are described.
    Type: Grant
    Filed: July 9, 1996
    Date of Patent: December 7, 1999
    Assignee: Eisai Co., Ltd.
    Inventors: Shigeru Souda, Norihiro Ueda, Shuhei Miyazawa, Katsuya Tagami, Seiichiro Nomoto, Makoto Okita, Naoyuki Shimomura, Toshihiko Kaneko, Masatoshi Fujimoto, Manabu Murakami, Kiyoshi Oketani, Hideaki Fujisaki, Hisashi Shibata, Tsuneo Wakabayashi
  • Patent number: 5840910
    Abstract: Pyridine derivatives useful for preventing or treating peptic ulcers, pharmaceutical preparations and methods of treating peptic ulcers are disclosed.
    Type: Grant
    Filed: December 6, 1994
    Date of Patent: November 24, 1998
    Assignee: Esai Co., Ltd.
    Inventors: Shigeru Souda, Norihiro Ueda, Shuhei Miyazawa, Katsuya Tagami, Seiichiro Nomoto, Makoto Okita, Naoyuki Shimomura, Toshihiko Kaneko, Masatoshi Fujimoto, Manabu Murakami, Kiyoshi Oketani, Hideaki Fujisaki, Hisashi Shibata, Tsuneo Wakabayashi
  • Patent number: 5708013
    Abstract: A pyridine compound having the formula is disclosed and useful to treat the peptic ulcer. ##STR1## wherein R.sup.1 and R.sup.2 which may be the same or different are each a hydrogen atom, a lower alkyl group, a lower alkoxy group, a halogenated lower alkyl group, or a halogen atom, R.sup.3 and R.sup.4 which may be the same or different are each a hydrogen atom or a lower alkyl group, X is a group represented by the formula --S--, a group represented by the formula ##STR2## or a group represented by the formula ##STR3## and n is an integer of 1 to 6, provided that R.sup.3 and R.sup.4 are not simultaneously hydrogen atoms when n is 1.
    Type: Grant
    Filed: August 21, 1995
    Date of Patent: January 13, 1998
    Assignee: Eisai Co., Ltd.
    Inventors: Shigeru Souda, Norihiro Ueda, Shuhei Miyazawa, Katsuya Tagami, Seiichiro Nomoto, Makoto Okita, Naoyuki Shimomura, Toshihiko Kaneko, Masatoshi Fujimoto, Manabu Murakami, Kiyoshi Oketani, Hideaki Fujisaki, Hisashi Shibata, Tsuneo Wakabayashi
  • Patent number: 5239079
    Abstract: A pyridinium salt is useful as an antiulcer and is defined by the following formula. It includes a sulphenamide compound and a pyridinium compound. J is benzoimidazole, K is --S-- or --SSR, Z is hydroxy or oxyalkyl.
    Type: Grant
    Filed: August 13, 1992
    Date of Patent: August 24, 1993
    Assignee: Eisai Co., Ltd.
    Inventors: Shigeru Souda, Shuhei Miyazawa, Norihiro Ueda, Katsuya Tagami, Seiichiro Nomoto, Makoto Okita, Naoyuki Shimomura, Toshihiko Kaneko, Masatoshi Fujimoto, Manabu Murakami, Kiyoshi Oketani, Hideaki Fujisaki, Hisashi Shibata, Tsuneo Wakabayashi
  • Patent number: 5162317
    Abstract: A pyridinium salt useful as an antiulcer agent, defined by formula (I) is disclosed. It includes a sulphenamide compound and a pyridinium compound. J is benzimidazole, K is --S-- or --SSR-- and Z is hydroxy or alkoxy.
    Type: Grant
    Filed: December 5, 1989
    Date of Patent: November 10, 1992
    Assignee: Esai Co., Ltd.
    Inventors: Shigeru Souda, Shuhei Miyazawa, Norihiro Ueda, Katsuya Tagami, Seiichiro Nomoto, Makoto Okita, Naoyuki Shimomura, Toshihiko Kaneko, Masatoshi Fujimoto, Manabu Murakami, Kiyoshi Oketani, Hideaki Fujisaki, Hisashi Shibata, Tsuneo Wakabayashi
  • Patent number: 5045552
    Abstract: Pyridine derivatives useful for preventing or treating peptic ulcers, pharmaceutical preparations and methods of treating peptic ulcers are described.
    Type: Grant
    Filed: December 28, 1989
    Date of Patent: September 3, 1991
    Assignee: Eisai Co., Ltd.
    Inventors: Shigeru Souda, Norihiro Ueda, Shuhei Miyazawa, Katsuya Tagami, Seiichiro Nomoto, Makoto Okita, Naoyuki Shimomura, Toshihiko Kaneko, Masatoshi Fujimoto, Manabu Murakami, Kiyoshi Oketani, Hideaki Fujisaki, Hisashi Shibata, Tsuneo Wakabayashi
  • Patent number: 4892973
    Abstract: Disclosed herein is a novel process for producing 1,1-diphenylalkenes, comprising contacting lead peroxide with 1,1-diphenylalkanes having the structure wherein a nitrogen atom of a tertiary amino group is bonded to the para-position of each of the two benzene rings of the 1,1-diphenylalkane, thereby obtaining the corresponding 1,1-diphenylalkenes.
    Type: Grant
    Filed: August 31, 1988
    Date of Patent: January 9, 1990
    Assignee: Yamada Chemical Co., Ltd.
    Inventors: Kozo Mizuno, Hideaki Fujisaki, Yoshinori Uda, Tadashi Imai, Katsuhiko Tsunemitsu
  • Patent number: 4888439
    Abstract: A novel polyprenyl compound is identified with the formula and useful for a pharmaceutical drag. ##STR1## wherein X represents a group of the formula: ##STR2## (wherein R.sup.1 and R.sup.2, which may be the same or different, represent each a hydrogen atom, a lower alkyl group, a hydroxyalkyl group, or a lower alkenyl group); a group of the formula: ##STR3## (wherein A including the nitrogen atom shown represents a ring containing nitrogen and oxygen atoms); or a group of the formula: ##STR4## (wherein R.sup.3 represents a hydrogen atom or a lower alkyl group, and R.sup.4 represents a lower alkyl group); Y represents a group of the formula: ##STR5## or a group of the formula: ##STR6## (wherein R.sup.5 represents a hydrogen atom or a lower alkyl group), and n represents an integer of from 2 to 5.
    Type: Grant
    Filed: May 1, 1985
    Date of Patent: December 19, 1989
    Assignee: Eisai Co., Ltd.
    Inventors: Isao Yamatsu, Takeshi Suzuki, Shinya Abe, Kouji Nakamoto, Akiharu Kajiwara, Manabu Murakami, Kiyoshi Oketani, Hideaki Fujisaki
  • Patent number: 4820841
    Abstract: Disclosed herein is a novel chromogenic compound of the formula: ##STR1## wherein R represents an alkyl group of 6 to 12 carbon atoms or benzyl group, and ring A and ring B in the quinolyl group may be substituted, a color forming composition containing said chromogenic compound, and pressure- or heat-sensitive recording paper based on said color forming composition.
    Type: Grant
    Filed: August 26, 1986
    Date of Patent: April 11, 1989
    Assignee: Yamada Chemical Co., Ltd.
    Inventors: Hideaki Fujisaki, Kouzou Mizuno, Yukihiko Sueto, Katsuhiko Tsunemitsu
  • Patent number: 4782151
    Abstract: A novel polyprenyl compound is identified with the formula and useful for a pharmaceutical drag. ##STR1## wherein X represents a group of the formula: ##STR2## (wherein R.sup.1 and R.sup.2, which may be the same or differnt, represent each a hydrogen atom, a lower alkyl group, a hydroxyalkyl group, or a lower alkenyl group); a group of the formula: ##STR3## (wherein A including the nitrogen atom shown represents a ring containing nitrogen and oxygen atoms); or a group of the formula: ##STR4## (wherein R.sup.3 represents a hydrogen atom or a lower alkyl group, and R.sup.4 represents a lower alkyl group); Y represents a group of the formula: ##STR5## or a group of the formula: ##STR6## (wherein R.sup.5 represents a hydrogen atom or a lower alkyl group), and n represents an integer of from 2 to 5.
    Type: Grant
    Filed: January 29, 1988
    Date of Patent: November 1, 1988
    Assignee: Eisai Co., Ltd.
    Inventors: Isao Yamatsu, Takeshi Suzuki, Shinya Abe, Kouji Nakamoto, Akiharu Kajiwara, Manabu Murakami, Kiyoshi Oketani, Hideaki Fujisaki
  • Patent number: 4598150
    Abstract: The present invention relates to a novel compound of the formula: ##STR1## wherein R.sup.1 and R.sup.2 respectively represent hydrogen atom, lower alkyl group of 1 to 5 carbon atoms, lower alkoxy group of 1 to 5 carbon atoms or halogen atom; R.sup.3 represents hydrogen atom, alkyl group of 1 to 12 carbon atoms, alkoxyalkyl group of 1 to 12 carbon atoms, halogenoalkyl group of 1 to 12 carbon atoms, phenyl group which may be substituted or benzyl group which may be substituted; and m and n are an integer of 1 or 2; providing the R.sup.1 and R.sup.2 do not represent hydrogen atom, methyl group and methoxy group when R.sup.3 represents hydrogen atom or methyl group.Further, the present invention relates to color developing compositions suitable for use in a recording material and pressure- or heat-sensitive recording sheet containing the novel compound of the formula (I).
    Type: Grant
    Filed: February 16, 1984
    Date of Patent: July 1, 1986
    Assignee: Yamada Chemical Co. Ltd
    Inventors: Hideaki Fujisaki, Seiichi Nieda, Katsuhiko Tsunemitsu