Patents by Inventor Keiko Yamamoto

Keiko Yamamoto 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: 20240124389
    Abstract: An object of present invention is to provide a compound or a salt thereof constituting lipid particles that can achieve a high nucleic acid encapsulation rate and excellent delivery of nucleic acids, and to provide lipid particles and pharmaceutical composition using the compound or a salt thereof, which can achieve a high nucleic acid encapsulation rate and excellent delivery of nucleic acids. According to an aspect of the present invention, a compound represented by Formula (1) or a salt thereof is provided. In the formula, each symbol has a meaning defined in the present specification.
    Type: Application
    Filed: October 26, 2023
    Publication date: April 18, 2024
    Applicant: FUJIFILM Corporation
    Inventors: Shintaro TANABE, Tatsuya NITABARU, Mashiko YAMAMOTO, Hirofumi FUKUNAGA, Naoto NAKAMURA, Noriyuki KASAGI, Taisuke ENDO, Keiko SUZUKI
  • Patent number: 11958845
    Abstract: The present invention provides a heterocyclic compound having a HDAC6 inhibitory action, which is useful for the treatment of central nervous system diseases including neurodegenerative diseases, and the like, and a medicament comprising the compound. The present invention relates to a compound represented by the formula (I): wherein each symbol is as defined in the description, or a salt thereof.
    Type: Grant
    Filed: September 26, 2022
    Date of Patent: April 16, 2024
    Assignee: Takeda Pharmaceutical Company Limited
    Inventors: Masahiro Ito, Hideyuki Sugiyama, Takeshi Yamamoto, Keiko Kakegawa, Jinxing Li, Junsi Wang, Takahito Kasahara, Masato Yoshikawa
  • Patent number: 9045466
    Abstract: An amidine compound represented by formula (I) (wherein A1 represents a nitrogen atom or a group represented by formula CR6; A2 and A3 are the same as or different from each other and independently represent a nitrogen atom or a group represented by formula CH; R1 represents an aryl group which may be substituted by 1 to 5 substituents independently selected from a substituent group (2) or the like; R2 and R3 are the same as or different from each other and independently represent a hydrogen atom, a halogen atom, a C1-6 alkyl group, a C1-6 haloalkyl group or a C1-6 alkoxy group; and R4 and R5 are the same as or different from each other and independently represent a hydrogen atom, a C1-6 haloalkyl group, a C1-6 alkyl group or the like) or a salt thereof. The compound is useful as an anti-fungal agent.
    Type: Grant
    Filed: July 27, 2012
    Date of Patent: June 2, 2015
    Assignees: TAISHO PHARMACEUTICAL CO., LTD, TOYAMA CHEMICAL CO., LTD.
    Inventors: Tetsuya Tanikawa, Yasunobu Ushiki, Fumihito Ushiyama, Toru Yamaguchi, Naoya Ono, Keiko Yamamoto, Risa Tsuruta, Yasuhiro Tsutsui, Noritomo Fujino, Ayumu Mori
  • Patent number: 9042972
    Abstract: A peak-relevant value device acquires a peak-relevant value (for example, the peak value of an R wave (R peak value)) every cycle from an electrocardiogram acquired. The frequencies of the peak-relevant value acquired as time-series data and the magnitudes for the respective frequencies are analyzed. A peak-relevant value LF calculating device calculates an LF component (peak-relevant value LF component) from the frequency component of the peak-relevant value. An interval acquiring device acquires the interval between characteristic points of the electrocardiographic complex from the electrocardiogram acquired and the frequencies of the feature point interval acquired as time-series data to acquire the magnitudes of the respective frequency component are analyzed.
    Type: Grant
    Filed: June 23, 2009
    Date of Patent: May 26, 2015
    Assignee: NIHON KOHDEN CORPORATION
    Inventors: Shinya Nagata, Ryuji Nagai, Keiko Yamamoto
  • Publication number: 20140155597
    Abstract: The purpose of the present invention is to provide a novel compound which has an anti-fungal activity on pathogenic fungi including fungi belonging to the genus Candida, the genus Aspergillus and the genus Trichophyton and is useful as a medicinal agent.
    Type: Application
    Filed: July 27, 2012
    Publication date: June 5, 2014
    Applicants: TOYAMA CHEMICAL CO., LTD., TAISHO PHARMACEUTICAL CO., LTD.
    Inventors: Tetsuya Tanikawa, Yasunobu Ushiki, Fumihito Ushiyama, Toru Yamaguchi, Naoya Ono, Keiko Yamamoto, Risa Tsuruta, Yasuhiro Tsutsui, Noritomo Fujino, Ayumu Mori
  • Publication number: 20110112420
    Abstract: A device for objectively judging pain is disclosed. A peak-relevant value means (10) acquires a peak-relevant value (for example, the peak value of an R wave (R peak value)) every cycle from an electrocardiogram acquired. A peak-relevant value frequency analyzing means (12) analyzes the frequencies of the peak-relevant value acquired as time-series data and the magnitudes for the respective frequencies. A peak-relevant value LF calculating means (14) calculates an LF component (peak-relevant value LF component) from the frequency component of the peak-relevant value. An interval acquiring means (4) acquires the interval between characteristic points of the electrocardiographic complex (for example, the time intervals between R waves (RR interval)) from the electrocardiogram acquired. An interval frequency analyzing means (6) analyzes the frequencies of the feature point interval acquired as time-series data to acquire the magnitudes of the respective frequency component.
    Type: Application
    Filed: June 23, 2009
    Publication date: May 12, 2011
    Applicant: DAINIPPON SUMITOMO PHARMA CO., LTD.
    Inventors: Shinya Nagata, Ryuji Nagai, Keiko Yamamoto
  • Patent number: 6833148
    Abstract: The green vegetable puree production process according to the present invention, which contains a grinding step and an acid addition step and does not include a heating step, produces an unheated green vegetable puree having no catalase activity, containing an acid or acids and having a pH of 2.7 to 4.1. The puree sufficiently maintains the original flavor and taste and freshness of vegetables and is suitable for use in the preparation of foods, especially for vegetable juices.
    Type: Grant
    Filed: April 16, 2001
    Date of Patent: December 21, 2004
    Assignee: Sunstar Inc.
    Inventors: Keiko Yamamoto, Makoto Suwa
  • Patent number: 6548678
    Abstract: Disclosed is a method for producing 5-phenoxycarbonylbenzotriazole (I): by reacting 1H-benzotriazole-5-carboxylic acid (II): with diphenyl carbonate (III):
    Type: Grant
    Filed: September 24, 2002
    Date of Patent: April 15, 2003
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Keiko Yamamoto, Takashi Kamikawa
  • Patent number: 6180101
    Abstract: A remedy for tragomaschalia characterized in that it conntains an effective amount of adrenocorticosteroid and from 1 to 10% by weight of an extraction product from lactic acid fermentation based on one gram of a base. The extraction product from lactic acid fermentation has a metabolism product of lactic acid bacteria and ingredients of bacterial cells of lactic acid bacteria together. By inhibition of the secretion itself of a odoriferous steroid which is the cause of tragomaschalia, remetabolism and generation of such a steroid compound by tragomaschalia bacteria are completely eliminated, and there is little fear of adverse drug reactions by the adrenocorticosteroid used for that purpose.
    Type: Grant
    Filed: October 5, 1999
    Date of Patent: January 30, 2001
    Inventor: Keiko Yamamoto
  • Patent number: 5832750
    Abstract: A new Combination Washer-Drier System for providing a combination washer and drier that can be mounted in various areas of a building, thereby allowing utilization of an existing fixture such as a toilet or a washbasin for supplying water to the present invention and for draining wash water from the present invention. The inventive device includes a power source, a compact combination washer-drier means connected to the power source, a water supplying means connected to the combination washer-drier means, a controller means electronically connected to the combination washer-drier means, an existing fixture such as a toilet or a washbasin connected to the combination washer-drier means, a mounting means securing the combination washer-drier means to a wall, and a draining means engaging the combination washer-drier means draining waste water from the present invention.
    Type: Grant
    Filed: July 8, 1996
    Date of Patent: November 10, 1998
    Inventor: Keiko Yamamoto
  • Patent number: 5792225
    Abstract: The present invention relates to a dust and lint collection device. The device is utilized in the collection and disposal of lint, dust or other such material. In its broadest context, the present invention includes a collection sleeve which is adapted for engagement with the opened end of a flexible bag. The material to be collected is inserted through the sleeve and into the bag. The bag can then be disposed.
    Type: Grant
    Filed: May 8, 1997
    Date of Patent: August 11, 1998
    Inventor: Keiko Yamamoto
  • Patent number: 3985621
    Abstract: New application of an aqueous alkali solution of cyclohexylaminopropanesulfonic acid, said acid being contained therein with a specific range of concentration and said solution having a specific range of pH value, as a stopping agent for stopping an enzyme reaction of a dehydrogenase or a dehydrogenase system in a spectrophotometric assay method of an activity of serum enzyme in said enzyme or enzyme system.
    Type: Grant
    Filed: October 21, 1975
    Date of Patent: October 12, 1976
    Assignee: Sankyo Company Limited
    Inventors: Motohiro Maruyama, Keiko Yamamoto
  • Patent number: D899080
    Type: Grant
    Filed: October 30, 2018
    Date of Patent: October 20, 2020
    Assignee: MENICON CO., LTD.
    Inventors: Akihiro Yasuda, Keisuke Yamamoto, Keiko Yamamoto
  • Patent number: D899081
    Type: Grant
    Filed: December 7, 2018
    Date of Patent: October 20, 2020
    Assignee: MENICON CO., LTD.
    Inventors: Keisuke Yamamoto, Katsuhiro Iwai, Akihiro Yasuda, Keiko Yamamoto, Takashi Goto