LexDanaLexDanabeta
Inventor

Toyoshiro Isoyama

Inventor
Yokohama-shi, JP

Overview

27→
Patents
1985–2000
Patent span
Chemistry
Primary field (CPC C)

Patents· 27 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

C09Kprimary
C09KMaterials for miscellaneous applications, not provided for elsewhere66%
C07CAcyclic or carbocyclic compounds20%
C07DHeterocyclic compounds12%
G02FOptical devices or arrangements for the control of light by modification of the optical properties of the media of the elements involved therein2%
PatentTitleYear
6,040,890'Electric optical liquid crystal system'20005,858,271'Liquid crystal composition and liquid crystal display device'19995,723,068'Liquid crystal composition and a liquid crystal display device containing the same'19985,683,624'Liquid crystal composition'19975,650,093'Liquid crystal composition and a LC display device'19975,262,084'Liquid crystal composition'19935,021,189'Liquid crystal composition'19914,923,632'Liquid crystal composition for twist nematic mode'19904,917,818'Nematic liquid crystal composition'19904,877,549'Liquid crystal composition'19894,778,621'Ester compound'19884,772,416'Phenylpyridine derivative'19884,756,847'4\'-cyano-3\'-halogenophenyl 4-(5-substituted-pyrimidin-2-yl)benzoate derivatives and liquid crystal composition comprising same'19884,696,759'Ester compound'19874,684,478'Novel liquid crystal compound for high temperatures'19874,684,476'Pyrimidine derivative and liquid crystal composition containing same'19874,680,137'Liquid crystal ester compound'19874,673,529'Phenoxypropanol ester derivative'19874,661,283'Benzoate derivatives having a large positive dielectric anisotropy value and liquid crystal compositions containing same'19874,659,501'2-cyano-4-halogenophenyl substituted-benzoates'19874,654,162'Alcohol derivatives'19874,640,796'1,4-dipyrimidinylbenzene derivative'19874,603,018'2-cyano-4-halogenophenyl esters'19864,585,575'2-substituted-6-(5-substituted-2-pyrimidinyl)naphthalenes'19864,576,733'4-Halogenobenzoic acid esters'19864,536,321'Fluorobenzene derivatives and liquid crystal compositions containing the same'19854,534,883'4-Unsubstituted or substituted-4 cyanotercyclohexane derivatives'1985

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1985–2000Patents assigned to CHISSO CORP (27)· patent assignee history
1985–1988Based in Yokohama-shi, JP· patent location history
1987–1988Based in Yokohama, JP· patent location history
1988Based in Kanagawa, JP· patent location history
1989–1991Based in Ichihara, JP· patent location history
1993–2000Based in Chiba, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
CHISSO CORP271985–2000
Locations
LocationPatentsSpan
Yokohama-shi, JP141985–1988
Chiba, JP61993–2000
Ichihara, JP41989–1991
Yokohama, JP21987–1988
Kanagawa, JP11988