Patents by Inventor Koichi Ito

Koichi Ito 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).

  • Amorphous object of cinnamide compound
    Patent number: 7923563
    Abstract: An amorphous object of (3E)-1-[l(s)-1-(4-fluorophenyl)ethyl]-3-[3-methoxy-4-(4methyl-1H-imidazol-1-yl)benzylidene]piperidine-2-one, which is represented by the formula (1) and has A?-production inhibitory activity. The amorphous object has such satisfactory properties that it has excellent solubility, is stable, does not readily become a crystalline form, and has low hygroscopicity. It is hence suitable for use in pharmaceutical preparations.
    Type: Grant
    Filed: October 25, 2005
    Date of Patent: April 12, 2011
    Assignee: Eisai R&D Management Co., Ltd.
    Inventors: Ikuo Kushida, Eriko Doi, Koichi Ito
  • IMIDAZOYL PYRIDINE COMPOUNDS AND SALTS THEREOF
    Publication number: 20110065696
    Abstract: A compound represented by the formula (I): or a pharmacologically acceptable salt thereof, wherein Ar1 represents an imidazolyl group or the like which may be substituted with a C1-6 alkyl group, Ar2 represents a phenyl group or the like which may be substituted with a C1-6 alkoxy group, X1 represents a double bond or the like and Het represents a triazolyl group or the like which may be substituted with a C1-6 alkyl group or the like, is effective as a therapeutic or prophylactic agent for a disease caused by A?.
    Type: Application
    Filed: November 19, 2010
    Publication date: March 17, 2011
    Inventors: Teiji KIMURA, Noritaka Kitazawa, Toshihiko Kaneko, Nobuaki Sato, Koki Kawano, Koichi Ito, Mamoru Takaishi, Takeo Sasaki, Yu Yoshida, Toshiyuki Uemura, Takashi Doko, Daisuke Shinmyo, Daiju Hasegawa, Takehiko Miyagawa, Hiroaki Hagiwara
  • Multi-cyclic cinnamide derivatives
    Patent number: 7897632
    Abstract: The present invention provides a compound represented by the formula (I): or a pharmacologically acceptable salt thereof, wherein Ar1 represents an imidazolyl group that may be substituted with a C1-6 alkyl group, or the like, Ar2 represents a phenyl group that may be substituted with a C1-6 alkoxy group, or the like, X1 represents a double bond or the like, and Het represents an imidazolyl group that may be substituted with a C1-6 alkyl group, or the like, which is effective as a therapeutic or prophylactic agent for a disease caused by A?.
    Type: Grant
    Filed: March 11, 2010
    Date of Patent: March 1, 2011
    Assignee: Eisai R&D Management Co., Ltd.
    Inventors: Teiji Kimura, Noritaka Kitazawa, Toshihiko Kaneko, Nobuaki Sato, Koki Kawano, Koichi Ito, Eriko Doi, Mamoru Takaishi, Takeo Sasaki, Takehiko Miyagawa, Hiroaki Hagiwara, Takashi Doko
  • Modulation circuit, modulation method, program and communication apparatus
    Patent number: 7898351
    Abstract: There is provided a modulation circuit including a sampling unit that over-samples an input digital signal based on a multiplying clock signal, and outputs a first over-sampling signal, a first frequency conversion unit that outputs a first high-frequency signal based on the first over-sampling signal and a reference signal, a first filter unit that outputs a second high-frequency signal based on a second over-sampling signal obtained by delaying the first over-sampling signal by one clock and the reference signal, a second filter unit that outputs a third high-frequency signal based on a third over-sampling signal obtained by delaying the second over-sampling signal by one clock and the reference signal, and an adder unit that adds the first high-frequency signal, the second high-frequency signal, and the third high-frequency signal, and outputs an output signal.
    Type: Grant
    Filed: June 23, 2009
    Date of Patent: March 1, 2011
    Assignee: Sony Corporation
    Inventor: Koichi Ito
  • Cinnamide compound
    Patent number: 7880009
    Abstract: The present invention relates to a compound represented by Formula (I): (wherein Ar1 represents an imidazolyl group which may be substituted with 1 to 3 substituents; Ar2 represents a pyridinyl group, a pyrimidinyl group, or a phenyl group which may be substituted with 1 to 3 substituents; X1 represents (1) —C?C— or (2) a double bond etc. which may be substituted; R1 and R2 represent, for example, a C1-6 alkyl group or C3-8 cycloalkyl group which may be substituted) or a pharmacologically acceptable salt thereof and to the use thereof as pharmaceutical agents.
    Type: Grant
    Filed: May 25, 2005
    Date of Patent: February 1, 2011
    Assignee: Eisai R&D Management Co., Ltd.
    Inventors: Teiji Kimura, Koki Kawano, Eriko Doi, Noritaka Kitazawa, Kogyoku Shin, Takehiko Miyagawa, Toshihiko Kaneko, Koichi Ito, Mamoru Takaishi, Takeo Sasaki, Hiroaki Hagiwara
  • POLYCYCLIC COMPOUND
    Publication number: 20110009619
    Abstract: Disclosed is a compound represented by the formula (I): or a pharmacologically acceptable salt thereof, which is effective as a therapeutic or prophylactic agent for a disease induced by A?, wherein Ar1 represents an imidazolyl group which may be substituted with a C1-6 alkyl group, or the like; Ar2 represents a phenyl group which may be substituted with a C1-6 alkoxy group, or the like; X1 represents a double bond, or the like; and Het represents a triazolyl group or the like which may be substituted with a C1-6 alkyl group or the like, or the like.
    Type: Application
    Filed: August 28, 2008
    Publication date: January 13, 2011
    Applicant: Eisai R&D Management Co., Ltd.
    Inventors: Teiji Kimura, Noritaka Kitazawa, Toshihiko Kaneko, Nobuaki Sato, Koki Kawano, Koichi Ito, Mamoru Takaishi, Takeo Sasaki, Yu Yoshida, Toshiyuki Uemura, Takashi Doko, Daisuke Shinmyo, Daiju Hasegawa, Takehiko Miyagawa, Hiroaki Hagiwara
  • METHOD FOR PRODUCING 1, 2-DIHYDROPYRIDINE-2-ONE COMPOUND
    Publication number: 20100324297
    Abstract: The present inventions provide a method for commercially producing a 1,2-dihydropyridine-2-one compound represented by the following formula (III-a) wherein the ring A represents an optionally substituted 2-pyridyl group, the ring B represents an optionally substituted phenyl group, and the ring C represents an optionally substituted phenyl group. Further, the invention provides crystals of 3-(2-cyanophenyl)-5-(2-pyridyl)-1-phenyl-1,2-dihydropyridin-2-one and production processes therefore.
    Type: Application
    Filed: August 27, 2010
    Publication date: December 23, 2010
    Inventors: Itaru ARIMOTO, Satoshi Nagato, Yukiko Sugaya, Yoshio Urawa, Koichi Ito, Hiroyuki Naka, Takao Omae, Akio Yayano, Katsutoshi Nishiura
  • ANTENNA AND WIRELESS COMMUNICATION APPARATUS
    Publication number: 20100214174
    Abstract: The present invention provides an antenna that is small in size and has band frequencies corresponding to multibands, and a wireless communication apparatus including the antenna. The antenna according to the present invention has two radiation elements 12a and 12b connected to a ground plate 11 via a shorting pin. The two radiation elements 12a and 12b each have a lower arm and an upper arm that are formed through bending. The lower arm is connected to the shorting pin and is located closer to the ground plate 11 than the upper arm is. At least one of the lower arm and the upper arm has a meandered structure.
    Type: Application
    Filed: September 1, 2009
    Publication date: August 26, 2010
    Applicants: FUJIKURA LTD., CHIBA UNIVERSITY
    Inventors: Ning Guan, Koichi Ito
  • METHOD FOR PRODUCING INDOLE DERIVATIVE HAVING PIPERIDINE RING
    Publication number: 20100197926
    Abstract: It is possible to commercially advantageously prepare 1-{1-[2-(7-methoxy-2,2-dimethyl-4-oxochroman-8-y)ethyl]piperidin-4-yl}-N-methyl-1H-indole-6-carboxamide by coupling (7-methoxy-2,2-dimethyl-4-oxochroman-8-yl)acetaldehyde, which is obtained by oxidizing 8-(2-hydroxyethyl)-7-methoxy-2,2-dimethylchroman-4-one, with N-methyl-1-(piperidin-4-yl)-1H-indole-6-carboxamide.
    Type: Application
    Filed: November 5, 2006
    Publication date: August 5, 2010
    Inventors: Naoyuki Shimomura, Atsushi Kamada, Mamoru Miyazawa, Koichi Ito
  • MULTI-CYCLIC CINNAMIDE DERIVATIVES
    Publication number: 20100168095
    Abstract: The present invention provides a compound represented by the formula (I): or a pharmacologically acceptable salt thereof, wherein Ar1 represents an imidazolyl group that may be substituted with a C1-6 alkyl group, or the like, Ar2 represents a phenyl group that may be substituted with a C1-6 alkoxy group, or the like, X1 represents a double bond or the like, and Het represents an imidazolyl group that may be substituted with a C1-6 alkyl group, or the like, which is effective as a therapeutic or prophylactic agent for a disease caused by A?.
    Type: Application
    Filed: March 11, 2010
    Publication date: July 1, 2010
    Inventors: Teiji KIMURA, Noritaka KITAZAWA, Toshihiko KANEKO, Nobuaki SATO, Koki KAWANO, Koichi ITO, Eriko DOI, Mamoru TAKAISHI, Takeo SASAKI, Takehiko MIYAGAWA, Hiroaki HAGIWARA, Takashi DOKO
  • Prodrug of cinnamide compound
    Patent number: 7737141
    Abstract: The present invention provides a most suitable prodrug of a cinnamide compound. The prodrug is represented by Formula (I) wherein Ra and Rb each denote a C1-6 alkyl group or the like; Xa denotes a methoxy group or a fluorine atom; Y denotes a phosphono group or the like; and A denotes a cyclic lactam derivative.
    Type: Grant
    Filed: July 25, 2007
    Date of Patent: June 15, 2010
    Assignee: Eisai R&D Management Co., Ltd.
    Inventors: Teiji Kimura, Koki Kawano, Noritaka Kitazawa, Nobuaki Sato, Toshihiko Kaneko, Koichi Ito, Mamoru Takaishi, Ikuo Kushida
  • Manufacturing method of plugged honeycomb structure
    Patent number: 7736581
    Abstract: A method is provided for manufacturing a plugged honeycomb structure 30 including a honeycomb substrate 1 and plugging portions 15 arranged so as to form complementary checkered patterns at both end surfaces 11 and 21 of the honeycomb substrate 1. The method includes attaching a first mask film 4a to the first end surface 11 of the honeycomb substrate 1, making slurry permeation holes 3a to introduce a plugging slurry 6, attaching a second mask film 4b to the second end surface 21 of the honeycomb substrate 1, making slurry permeation holes 3b, allowing air to flow into the cells 2 so as to discharge air giving a pressure of 0.05 to 5 MPa between the first mask film 4a and the honeycomb substrate 1; and filling cell opening end portions 7 with the plugging slurry 6 to fire the resultant slurry filled substrate 20.
    Type: Grant
    Filed: December 12, 2007
    Date of Patent: June 15, 2010
    Assignee: NGK Insulators, Ltd.
    Inventors: Koichi Ito, Takeshi Tokunaga
  • Salt of 1,2-dihydropyridine compound
    Patent number: 7718807
    Abstract: An acid addition salt of 3-(2-cyanophenyl)-5-(2-pyridyl)-1-phenyl-1,2-dihydropyridin-2-one or a hydrate thereof, wherein the acid is selected from the group consisting of benzenesulfonic acid, p-toluenesulfonic acid, hydrochloric acid, hydrobromic acid, sulfuric acid, methanesulfonic acid, fumaric acid, tartaric acid, succinic acid and benzoic acid.
    Type: Grant
    Filed: April 27, 2007
    Date of Patent: May 18, 2010
    Assignee: Eisai R&D Management Co., Ltd.
    Inventors: Satoshi Nagato, Kohshi Ueno, Hiroshi Ishihara, Yukiko Sugaya, Koichi Ito
  • Multi-cycle cinnamide derivatives
    Patent number: 7713993
    Abstract: The present invention provides a compound represented by the formula (I): or a pharmacologically acceptable salt thereof, wherein Ar1 represents an imidazolyl group that may be substituted with a C1-6 alkyl group, or the like, Ar2 represents a phenyl group that may be substituted with a C1-6 alkoxy group, or the like, X1 represents a double bond or the like, and Het represents an imidazolyl group that may be substituted with a C1-6 alkyl group, or the like, which is effective as a therapeutic or prophylactic agent for a disease caused by A?.
    Type: Grant
    Filed: March 8, 2007
    Date of Patent: May 11, 2010
    Assignee: Eisai R&D Management Co., Ltd.
    Inventors: Teiji Kimura, Noritaka Kitazawa, Toshihiko Kaneko, Nobuaki Sato, Koki Kawano, Koichi Ito, Eriko Doi, Mamoru Takaishi, Takeo Sasaki, Takehiko Miyagawa, Hiroaki Hagiwara, Takashi Doko
  • BICYCLIC OXOMORPHOLINE DERIVATIVE
    Publication number: 20100113773
    Abstract: The present invention relates to a compound represented by formula (I): wherein R1 represents a C1-3 alkyl group, R2 represents a hydrogen atom or a C1-3 alkyl group, Ar represents a phenyl group or the like which may be substituted with 1 to 3 substituents, X represents an oxygen atom or the like, n and m are the same or different and integers of 0 to 2, or a pharmacologically acceptable salt, and use thereof as a medicament.
    Type: Application
    Filed: February 27, 2008
    Publication date: May 6, 2010
    Inventors: Teiji Kimura, Koki Kawano, Eriko Doi, Noritaka Kitazawa, Mamoru Takaishi, Koichi Ito, Toshihiko Kaneko, Takeo Sasaki, Nobuaki Sato, Takehiko Miyagawa, Hiroaki Hagiwara
  • UREA TYPE CINNAMIDE DERIVATIVE
    Publication number: 20100105904
    Abstract: Disclosed is a compound represented by the formula (I) below or a pharmacologically acceptable salt thereof. Also disclosed is a use of the compound or salt as a pharmaceutical product. (In the formula, Ar1 represents an imidazolyl group which may be substituted with a C1-6 alkyl group; Ar2 represents a phenyl group which may be substituted with a C1-6 alkoxy group; X1 represents a single bond; R1 and R2 respectively represent a C1-6 alkyl group or the like which may be substituted with a substituent such as a 5- to 14-membered aromatic heterocyclic group; and R3 represents a hydrogen atom or the like.
    Type: Application
    Filed: May 18, 2007
    Publication date: April 29, 2010
    Inventors: Teiji Kimura, Koki Kawano, Eriko Doi, Noritaka Kitazawa, Takehiko Miyagawa, Nobuaki Sato, Toshihiko Kaneko, Kogyoku Shin, Koichi Ito, Mamoru Takaishi, Takeo Sasaki, Hiroaki Hagiwara
  • Cinnamide compound
    Patent number: 7687640
    Abstract: The present invention relates to a process for preparing a compound of formula (6a): wherein Ar1 represents an imidazolyl group which may be substituted with 1 to 3 substituents shown below; Ar2 represents a pyridinyl group, a pyrimidinyl group or a phenyl group which may be substituted with 1 to 3 substituents; and R11 represents a group selected from certain substituents.
    Type: Grant
    Filed: July 2, 2009
    Date of Patent: March 30, 2010
    Assignee: Eisai R&D Management Co., Ltd.
    Inventors: Teiji Kimura, Koki Kawano, Eriko Doi, Noritaka Kitazawa, Kogyoku Shin, Takehiko Miyagawa, Toshihiko Kaneko, Koichi Ito, Mamoru Takaishi, Takeo Sasaki, Hiroaki Hagiwara
  • COMMUNICATION APPARATUS
    Publication number: 20100074424
    Abstract: A communication apparatus such as a cellular phone is described in which a storage device stores communication history data including outgoing call history data, incoming call history data, sent message history data, received message history data, and multi-contact data. The multi-contact data includes a part of communication history data. For example, the multi-contact data may include the most recent entry data in each of the outgoing call history data, the incoming call history data, the sent message history data, and the received message history data. The data may be displayed based the attributes of the history data or multi-contact data such as date, data type or party information.
    Type: Application
    Filed: July 27, 2009
    Publication date: March 25, 2010
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventor: Koichi Ito
  • Cinnamide compound
    Patent number: 7667041
    Abstract: The present invention relates to a compound represented by Formula (I): (wherein Ar1 represents an imidazolyl group which may be substituted with 1 to 3 substituents; Ar2 represents a pyridinyl group, a pyrimidinyl group, or a phenyl group which may be substituted with 1 to 3 substituents; X1 represents (1) —C?C— or (2) a double bond etc. which may be substituted; R1 and R2 represent, for example, a C1-6 alkyl group or C3-8 cycloalkyl group which may be substituted) or a pharmacologically acceptable salt thereof and to the use thereof as pharmaceutical agents. The object of the present invention is to find a therapeutic or preventive agent for diseases caused by A?. According to the present invention, a therapeutic or preventive agents for diseases caused by A? can be provided.
    Type: Grant
    Filed: May 25, 2005
    Date of Patent: February 23, 2010
    Assignee: Eisai R&D Management Co., Ltd.
    Inventors: Teiji Kimura, Koki Kawano, Eriko Doi, Noritaka Kitazawa, Kogyoku Shin, Takehiko Miyagawa, Toshihiko Kaneko, Koichi Ito, Mamoru Takaishi, Hiroaki Hagiwara
  • Resistor circuit
    Patent number: 7659765
    Abstract: Operations as a variable resistor are favorably realized even when a drain-source voltage of a variable MOS resistor and that of a reference MOS resistor are not the same. A gate voltage of the variable MOS resistor is controlled with reference to a gate voltage which is controlled such that a voltage generated in the reference MOS resistor is controlled to be the same as a reference voltage. A resistor is connected in parallel with the reference MOS resistor between the drain and source thereof, the resistor including a pair of resistors having the same resistance connected in series. Half of a drain-source voltage of the reference MOS resistor is detected at an intermediate point of the pair of resistors. The gate voltage of the variable resistor is obtained by subtracting one-half of the drain-source voltage from the gate voltage of the reference MOS resistor.
    Type: Grant
    Filed: May 25, 2006
    Date of Patent: February 9, 2010
    Assignee: Sony Corporation
    Inventor: Koichi Ito