Patents by Inventor Yasuyuki Goto

Yasuyuki Goto 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).

  • Cyclohexane derivative
    Patent number: 4908152
    Abstract: A novel liquid crystal compound useful as a component of liquid crystal compositions, and particularly suitable to improvement in low temperature characteristics, and a liquid crystal composition containing the compound are provided, which compound is a 2-alkyl-5-[trans-4-(trans-4-alkylcyclohexyl)cyclohexyl]fluorobenzene expressed by the formula ##STR1## wherein R.sup.1 and R.sup.2 each represent an alkyl group of 2 to 10 carbon atoms.
    Type: Grant
    Filed: March 31, 1989
    Date of Patent: March 13, 1990
    Assignee: Chisso Corporation
    Inventor: Yasuyuki Goto
  • Tolan compound and liquid crystal composition containing the same
    Patent number: 4895672
    Abstract: A liquid crystal substance having a low viscosity and good compatibility thereof with existing liquid crystals at low temperatures in addition to a large optical anisotropy value and a high clearing point and a liquid crystal composition containing the substance are provided, which substance is a 4-(trans-4-alkylcyclohexylmethyloxy)-4'-substituted-tolan expressed by the formula ##STR1## wherein R.sup.1 is 1-10C alkyl and R.sup.2 is 1-10C alkyl or F or Cl.
    Type: Grant
    Filed: August 17, 1988
    Date of Patent: January 23, 1990
    Assignee: Chisso Corporation
    Inventors: Yasuyuki Goto, Toshiharu Suzuki
  • Process for manufacturing an optical recording medium
    Patent number: 4889746
    Abstract: An optical recording medium using a recording layer of an alloy taking two different crystalline states exhibiting different reflectivities is preferably manufactured by depositing a plurality of layers, each of which consists essentially of an element or an intermetallic compound, i.e. a material having a lower crystallizable temperature, to form a recording layer having a desired average chemical composition, while heating a substrate on which the recording layer is being deposited.
    Type: Grant
    Filed: April 18, 1988
    Date of Patent: December 26, 1989
    Assignee: Fujitsu Limited
    Inventors: Kenichi Utsumi, Tetsuya Yuasa, Yasuyuki Goto, Iwao Tsugawa, Nagaaki Koshino
  • Fluorophenylcyclohexane derivative
    Patent number: 4855076
    Abstract: A novel fluorophenylcyclohexane derivative useful as a component of liquid crystal compositions used for liquid crystal display elements, and a liquid crystal composition containing the same are provided, which fluorophenylcyclohexane derivative is expressed by the formula ##STR1## wherein R.sup.1 represents an alkyl group of 1 to 10 carbon atoms; R.sup.2 represents an alkyl group or an alkoxy group each of 1 to 10 carbon atoms; a.sup.1 represents a hydrogen atom and a.sup.2 represents a fluorine atom; A represents a 1,4-phenylene group; l and m each represent an integer of 0, 1 or 2 or 3; and a value of (l+m) is 2 or 3.
    Type: Grant
    Filed: September 15, 1986
    Date of Patent: August 8, 1989
    Assignee: Chisso Corporation
    Inventors: Yasuyuki Goto, Tetsuya Ogawa, Shigeru Sugimori
  • Cyclohexane derivative
    Patent number: 4853152
    Abstract: A compound having a relatively low viscosity, a broad nematic phase temperature range, a good compatibility with other liquid crystal components at low temperatures and a positive large dielectric anisotropy value, and a liquid crystal composition having a low viscosity and capable of realizing a low driving threshold voltage of display elements are provided, which compound is a cyclohexane derivative expressed by the formula ##STR1## wherein R is 1-10C alkyl group, l is 1 or 2, m is 0 or 1 and l+m=2.
    Type: Grant
    Filed: November 7, 1988
    Date of Patent: August 1, 1989
    Assignee: Chisso Corporation
    Inventor: Yasuyuki Goto
  • Tolan derivative and liquid crystal composition containing the same
    Patent number: 4839091
    Abstract: A liquid crystal substance having a large optical anisotropy value, a low viscosity and a superior compatibility with other liquid crystal compounds at low temperatures and also raising the degree of choice of liquid crystal materials and a liquid crystal composition containing the above substance are provided, which substance is a 4-(trans-4-alkylcyclohexyl)-3',4'-difluorotolan expressed by the formula ##STR1## wherein R represents an alkyl group of 1 to 10 carbon atoms.
    Type: Grant
    Filed: June 10, 1988
    Date of Patent: June 13, 1989
    Assignee: Chisso Corporation
    Inventors: Yasuyuki Goto, Tetsuya Ogawa
  • 2-(trans-4-alkylcyclohexyl)-5-alkoxypyrimidines
    Patent number: 4824596
    Abstract: Novel compounds which, when used as a component of nematic liquid crystal compositions, can improve the characteristics of .DELTA.n and viscosity of the resulting liquid crystal compositions and also does not greatly adversely affect other characteristics thereof, and a liquid crystal composition containing such a compound are provided, which compound is expressed by the formula ##STR1## wherein R.sub.1 and R.sub.2 each independently represent an alkyl group of 1 to 12 carbon atoms.
    Type: Grant
    Filed: July 9, 1987
    Date of Patent: April 25, 1989
    Assignee: Chisso Corporation
    Inventors: Kisei Kitano, Yasuyuki Goto
  • Cyclohexane derivative and liquid crystal composition containing the same
    Patent number: 4820443
    Abstract: A cyclohexane derivative having a low viscosity, a broad nematic phase temperature range, a good compatibility with other liquid crystal components even at low temperatures and a large positive dielectric anisotropy value, and a liquid crystal composition containing the cyclohexane derivative are provided, which cyclohexane derivative is expressed by the formula ##STR1## wherein R represents an alkyl group of 1-10 C and A represents a hydrogen atom, a halogen atom of F, Cl or Br or a cyano group.
    Type: Grant
    Filed: February 1, 1988
    Date of Patent: April 11, 1989
    Assignee: Chisso Corporation
    Inventors: Yasuyuki Goto, Tetsuya Ogawa
  • Novel tolan type liquid crystal compound
    Patent number: 4816180
    Abstract: A novel tolan type liquid crystal compound having a large optical anisotropy value, a high N-I transistion temperature and also a low viscosity, and a liquid crystal composition containing the same are provided, which compound is a 4-(trans-4"-alkylcyclohexyl-1"-ethyl)-3',4'-substituted- or 4-(trans-4"-alkylcyclohexyl-1'-ethyl)-4'-substituted-tolan expressed by the formula ##STR1## wherein R' represents an alkyl group of 1 to 10 carbon atoms, X' represents a halogen atom of F, Cl or Br and X" represents hydrogen atom or a halogen atom of F, Cl or Br.
    Type: Grant
    Filed: December 11, 1987
    Date of Patent: March 28, 1989
    Assignee: Chisso Corporation
    Inventors: Yasuyuki Goto, Tetsuya Ogawa
  • Dihalogeno-aromatic compound
    Patent number: 4816179
    Abstract: A novel liquid crystal compound suitable to use as a component of liquid crystal dielectrics and a liquid crystal composition containing the same are provided, which compound is a dihalogeno-aromatic compound expressed by the formula ##STR1## wherein R is alkyl or alkoxy of 1.about.12 C or alkoxymethyl of 2.about.
    Type: Grant
    Filed: January 20, 1987
    Date of Patent: March 28, 1989
    Assignee: Chisso Corporation
    Inventors: Shigeru Sugimori, Yasuyuki Goto, Tetsuya Ogawa
  • Cyclohexane derivative and liquid crystal composition containing same
    Patent number: 4797228
    Abstract: A novel cyclohexane derivative having a good stability, a low viscosity and a large dielectric aniostropy value and a liquid crystal composition containing the same are provided, which derivative is expressed by the formula ##STR1## wherein R represents an alkyl group of 1 to 10 carbon atoms; A represents hydrogen, halogen or cyano group; l represents 1 or 2; and m represents 0 or 1.
    Type: Grant
    Filed: May 28, 1986
    Date of Patent: January 10, 1989
    Assignee: Chisso Corporation
    Inventors: Yasuyuki Goto, Shigeru Sugimori, Tetsuya Ogawa
  • Tolan derivative and a liquid crystal mixture containing the same
    Patent number: 4778620
    Abstract: A novel tolan derivative compound as a liquid crystal substance having a low viscosity and a good compatibility with existing liquid crystals at low temperatures in addition to a large optical anisotropy value and a high clearing point, and a liquid crystal mixture containing the above compound are provided, which compound is expressed by the formula ##STR1## wherein R.sup.1 represents an alkyl group of 1 to 10 carbon atoms, R.sup.2 represents an alkyl group of 1 to 10 carbon atoms, X represents --CH.sub.2 CH.sub.2 -- and A represents an H atom or an F atom.
    Type: Grant
    Filed: July 31, 1987
    Date of Patent: October 18, 1988
    Assignee: Chisso Corporation
    Inventors: Yasuyuki Goto, Tetsuya Ogawa
  • Phenylpyridine derivative
    Patent number: 4772416
    Abstract: A novel phenylpyridine derivative which exhibits a positive dielectric anisotropy and is useful as a component of liquid crystal materials and also has a broad temperature range of liquid crystal phases, a high clearing point and a superior compatibility with other liquid crystal compounds or liquid crystal compositions, and a composition containing the derivative are provided. The phenylpyridine derivative is expressed by the formula ##STR1## wherein R represents an alkyl group of 1 to 10 carbon atoms, X represents H or F; Y represents F, --CN or an alkyl group or an alkoxy group of 1 to 10 carbon atoms; and m represents 0 or 1.
    Type: Grant
    Filed: March 20, 1987
    Date of Patent: September 20, 1988
    Assignee: Chisso Corporation
    Inventors: Yasuyuki Goto, Kazunori Nigorikawa, Toyoshiro Isoyama
  • 4'-cyano-3'-halogenophenyl 4-(5-substituted-pyrimidin-2-yl)benzoate derivatives and liquid crystal composition comprising same
    Patent number: 4756847
    Abstract: Novel compounds which, when used as a components of liquid crystal compositions, have good compatibility with other components and also have large values of dielectric anisotropy and optical anisotropy, and liquid crystal compositions containing the same are provided, which compounds are 4'-cyano-3'-halogenophenyl 4-(5-substituted-pyrimidin-2-yl)benzoate expressed by the formula ##STR1## wherein R represents an alkyl group of 1 to 10 carbon atoms or --(CH.sub.2).sub.m --O--(CH.sub.2).sub.p --CH.sub.3 wherein m and p each represent an integer of 0 to 8 and m+p.ltoreq.8, and X represents a halogen atom.
    Type: Grant
    Filed: January 8, 1986
    Date of Patent: July 12, 1988
    Assignee: Chisso Corporation
    Inventors: Naoyuki Yoshida, Kisei Kitano, Yoshito Furukawa, Tetsuya Ogawa, Shigeru Sugimori, Yasuyuki Goto, Toyoshiro Isoyama, Kazunori Nigorikawa
  • Alkoxyethoxybenzoic acid ester derivatives
    Patent number: 4707296
    Abstract: A novel liquid crystal compound having a large positive dielectric anisotropy value and when added to a liquid crystal composition, forming no deposit in the resulting composition at low temperatures, and a liquid crystal composition containing the same are provided, which compound is an alkoxyethoxybenzoic acid ester derivative expressed by the formula ##STR1## wherein R represents an alkyl group of 1 to 10 carbon atoms.
    Type: Grant
    Filed: November 21, 1986
    Date of Patent: November 17, 1987
    Assignee: Chisso Corporation
    Inventors: Shigeru Sugimori, Yasuyuki Goto
  • Liquid-crystalline compounds
    Patent number: 4704228
    Abstract: Compounds useful as lower viscosity liquid-crystalline components of which liquid-crystalline compositions are partly composed are provided, which compounds areliquid-crystalline compounds expressed by the general formula ##STR1## wherein ##STR2## and R.sub.1 and R.sub.2 each represent an alkyl group of 1 to 8 carbon atoms, orliquid-crystalline compounds expressed by the general formula ##STR3## wherein R.sub.1 and R.sub.2 each represent an alkyl group of 1 to 8 carbon atoms.
    Type: Grant
    Filed: January 3, 1985
    Date of Patent: November 3, 1987
    Assignee: Chisso Corporation
    Inventors: Hiromichi Inoue, Masahiro Fukui, Yasuyuki Goto, Susumu Tokita
  • Ester compound
    Patent number: 4696759
    Abstract: A novel ester compound exhibiting liquid crystal phases within a broad temperature range and having a low viscosity and a high compatibility with liquid crystal compounds, and a liquid crystal composition containing the same are provided, which ester compound is expressed by the formula ##STR1## wherein X represents F or Cl; Y and Z each represent H, F or Cl and when either one of Y or Z is H, the other is F or Cl and further when X is Cl, Y and Z are not both Cl; --A-- represents a member selected from the group consisting of ##STR2## and R represents an alkyl group or an alkoxy group each of 1 to 10 carbon atoms.
    Type: Grant
    Filed: May 5, 1986
    Date of Patent: September 29, 1987
    Assignee: Chisso Corporation
    Inventors: Toyoshiro Isoyama, Yasuyuki Goto, Tetsuya Ogawa, Shigeru Sugimori
  • Cyclohexane derivative
    Patent number: 4695398
    Abstract: A compound which, when used as a component of a liquid crystal composition, has an effectiveness of notably reducing the viscosity and the operating voltage of the resulting liquid crystal composition, and a liquid crystal composition containing the same are provided, which compound is a cyclohexane derivative expressed by the formula ##STR1## wherein R represents hydrogen atom or an alkyl group of 1 to 10 carbon atoms.
    Type: Grant
    Filed: March 12, 1986
    Date of Patent: September 22, 1987
    Assignee: Chisso Corporation
    Inventors: Yasuyuki Goto, Tetsuya Ogawa, Shigeru Sugimori
  • Novel liquid crystal compound for high temperatures
    Patent number: 4684478
    Abstract: A compound which, when added as a component to other components, raises the N-I point of the resulting liquid crystal composition and nevertheless affords only a relatively small rise in viscosity of the composition, and a liquid crystal composition containing the same are provided, which compound is a 1-(trans-4'-alkylcyclohexyl)-2-4"-[trans-4"'-(trans-4""-alkylcyclohexyl)cy clohexylphenyl]ethane expressed by the formula ##STR1## wherein R.sup.1 and R.sup.2 each represent an alkyl group of 1 to 10 carbon atoms.
    Type: Grant
    Filed: January 6, 1986
    Date of Patent: August 4, 1987
    Assignee: Chisso Corporation
    Inventors: Shigeru Sugimori, Yasuyuki Goto, Toyoshiro Isoyama, Kazunori Nigorikawa, Tetsuya Ogawa, Kisei Kitano, Naoyuki Yoshida, Yoshito Furukawa
  • Pyrimidine derivative and liquid crystal composition containing same
    Patent number: 4684476
    Abstract: A novel pyrimidine derivative which, when used as a component of a liquid crystal composition, is useful for driving a liquid crystal cell containing the composition at low voltages, and a liquid crystal composition containing the same are provided, which pyrimidine derivative is expressed by the formula ##STR1## wherein n represents an integer of 0 or 1; R represents an alkyl or alkoxy group of 1 to 10 carbon atoms; and X.sub.1, X.sub.2 and X.sub.3 each represent hydrogen atom, F, Cl or Br as halogeno group, cyano group or trifluoromethyl group and at least one of X.sub.1, X.sub.2 and X.sub.3 is trifluoromethyl group.
    Type: Grant
    Filed: February 11, 1986
    Date of Patent: August 4, 1987
    Assignee: Chisso Corporation
    Inventors: Kisei Kitano, Tetsuya Ogawa, Yoshito Furukawa, Naoyuki Yoshida, Shigeru Sugimori, Yasuyuki Goto, Toyoshiro Isoyama, Kazunori Nigorikawa