Patents by Inventor Yasuhiko Ozaki

Yasuhiko Ozaki 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: 20020026054
    Abstract: The present invention is to provide a benzenesulfonic acid salt and a benzoic acid salt of (S)-4-[4-[(4-chlorophenyl)(2-pyridyl)methoxy]piperidino]butanoic acid represented by the formula (I): 1
    Type: Application
    Filed: September 12, 2001
    Publication date: February 28, 2002
    Applicant: UBE INDUSTRIES, LTD.
    Inventors: Jun-Ichiro Kita, Hiroshi Fujiwara, Shinji Takamura, Ryuzo Yoshioka, Yasuhiko Ozaki, Shin-Ichi Yamada
  • Patent number: 6307052
    Abstract: The present invention is to provide a benzenesulfonic acid salt and a benzoic acid salt of (S)-4-[4-[(4-chlorophenyl) (2-pyridyl)methoxy]piperidino]butanoic acid represented by the formula (I): wherein * represents an asymmetric carbon, which are excellent in antihistaminic activity and anti-allergic activity, and a process for producing the same.
    Type: Grant
    Filed: June 25, 1999
    Date of Patent: October 23, 2001
    Assignees: Ube Industries, Ltd., Tanabe Seiyaku Co., Ltd.
    Inventors: Jun-ichiro Kita, Hiroshi Fujiwara, Shinji Takamura, Ryuzo Yoshioka, Yasuhiko Ozaki, Shin-ichi Yamada
  • Patent number: 6269232
    Abstract: A longitudinal wave propagates in ink toward an opening. The surface of the ink is positioned at the opening and is curved. A surface wave is excited from an end of the liquid surface owing to a restoring force caused by surface tension of the ink. Assuming that the wavelength of the surface wave is &lgr;c, the diameter of the opening is established to be not smaller than 2m &lgr;c. The surface wave is generated from an edge of the opening and rapidly decreases due to the longitudinal wave. The surface waves caused by the longitudinal wave do not interfere with each other at the opening provided that certain conditions are established. Therefore, no complicated interference wave occurs on the surface of the ink, and the surface of the ink vibrates with a large amplitude in the vicinity of the edge of the opening.
    Type: Grant
    Filed: March 1, 2000
    Date of Patent: July 31, 2001
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Hiroshi Fukumoto, Jyunichi Aizawa, Yasuhiko Ozaki
  • Patent number: 6182907
    Abstract: At a dot cycle (T3), a dummy burst signal as well as a jet burst signal are supplied for a vibration exciter to drive it so that the vibration exciter can provide liquid with a periodic radiation pressure. The dummy burst signal is so determined as to jet no droplet, with a smaller number of pulses and so on. That allows a stable motion of meniscus of ink and it is thereby possible to stably jet the droplets. With this control provided is a technique to improve a shape of an ink surface from which the droplets are created and stably jet the droplets when a liquid jet unit for jetting the droplets from a liquid surface is driven.
    Type: Grant
    Filed: July 22, 1999
    Date of Patent: February 6, 2001
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Hiroyuki Nakagawa, Hiroshi Fukumoto, Jyunichi Aizawa, Yasuhiko Ozaki
  • Patent number: 5883264
    Abstract: Process for preparing optically active trans-3-phenylglycidamide compound, which comprises subjecting racemic trans-3-phenylglycidamide compound of the formula (I) ##STR1## wherein Ring A is substituted or unsubstituted benzene, and R.sup.1 is H or lower alkyl, to optical resolution using a microorganism having ability of preferentially hydrolyzing one of (2S,3R) isomer or (2R,3S) isomer thereof, and process for preparing an optically active 1,5-benzothiazepine derivative from the thus-obtained optically active trans-3-phenylglycidamide compound.
    Type: Grant
    Filed: March 6, 1997
    Date of Patent: March 16, 1999
    Assignee: Tanabe Seiyaku Co., Ltd.
    Inventors: Hiroaki Matsumae, Akiko Idei, Takuo Nishida, Yasuhiko Ozaki, Takeji Shibatani
  • Patent number: 5310904
    Abstract: Process for preparing optically active cis-3-hydroxy-2,3-dihydro-1,5-benzothiazepin-4(5H)-one compounds [I] of the formula: ##STR1## wherein Ring A and Ring B are substituted or unsubstituted benzene, R.sup.1 is hydrogen or di-lower alkylaminoalkyl, which comprises subjecting 1,5-benzothiazepin-4(5H)-one (II) of the formula [II]: ##STR2## wherein R.sup.4 is hydrogen or lower alkanoyl, and the other symbols are the same as defined above, to asymmetric reduction with a reaction product of optically active .alpha.-amino acid and metal hydride, in high optically yield, and said compounds [I] are very important as intermediate for preparing various medicines.
    Type: Grant
    Filed: January 8, 1993
    Date of Patent: May 10, 1994
    Assignee: Tanabe Seiyaku Co., Ltd.
    Inventors: Yasuhiko Ozaki, Shinichi Yamada, Hiroyasu Seko
  • Patent number: 4946862
    Abstract: A thiophene derivative of the formula: ##STR1## wherein R.sup.1, R.sup.2 and R.sup.3 are a lower alkyl group, Ring A is a substituted or unsubstituted phenyl group and p is an integer of 1 to 3, or a salt thereof and processes for preparing the same are disclosed. The thiophene derivative (I) is useful as the regulator of gastrointestinal tract motility.
    Type: Grant
    Filed: July 6, 1988
    Date of Patent: August 7, 1990
    Assignee: Tanabe Seiyaku Co., Ltd.
    Inventors: Kimiaki Hayashi, Yasuhiko Ozaki, Kenji Yamada, Hideyuki Takenaga, Ichizo Inoue
  • Patent number: 4902503
    Abstract: A first antimicrobial latex composition comprising a homogeneous blend of a natural rubber latex or a synthetic polymer latex and protein silver and a second antimicrobial latex composition comprising a homogeneous blend of a cationic natural rubber latex or a cationic synthetic polymer latex and a water-soluble silver compound, wherein each antimicrobial latex composition exhibits excellent long term stability during storage and can be readily prepared.
    Type: Grant
    Filed: November 23, 1988
    Date of Patent: February 20, 1990
    Assignee: Unitika Ltd.
    Inventors: Yoshihiro Umemura, Yasuhiko Ozaki, Akihito Kawaide
  • Patent number: 4857543
    Abstract: A thiophen derivative of the formula: ##STR1## wherein R.sup.1, and R.sup.2 and R.sup.3 are a lower alkyl group, Ring A is phenyl, a lower alkylenedioxy-substituted phenyl, a phenyl group having 1 to 3 substituent(s) selected from the group consisting of a lower alkyl group, a lower alkylthio group, a lower alkoxy group, a phenyl-lower alkoxy group, a lower alkoxycarbonyl group, a halogen atom, amino group and hydroxy group, X is --OCO--, --O-- or --S--, m and n are an integer of zero or 1, and p and q are an integer of zero, 1 or 2, or a salt thereof.
    Type: Grant
    Filed: June 27, 1988
    Date of Patent: August 15, 1989
    Assignee: Tanabe Seiyaku Co., Ltd.
    Inventors: Kimiaki Hayashi, Yasuhiko Ozaki, Kenji Yamada, Hideyuki Takenaga, Ichizo Inoue