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Inventor

Tsuyoshi Nakagawa

Inventor
Shimane, JP

Overview

3→
Patents
1987–2000
Patent span
Chemistry
Primary field (CPC C)

Patents· 3 as inventor

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

C08Lprimary
C08LCompositions of macromolecular compounds25%
C09KMaterials for miscellaneous applications, not provided for elsewhere25%
C12NMicroorganisms or enzymes25%
C12PFermentation or enzyme-using processes to synthesise a desired chemical compound or composition or to separate optical isomers from a racemic mixture25%
PatentTitleYear
6,103,488'Method of forming ubiquinone-10'20005,487,425'Composition and method for recovery of petroleum and gas'19964,654,404'Oil-resistant rubber composition'1987

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1987Patents assigned to NIPPON ZEON CO (1)· patent assignee history
1987Based in Kamakura, JP· patent location history
1996Patents assigned to JAPAN PETROLEUM EXPLORATION CO (1)· patent assignee history
1996Patents assigned to NITTO CHEMICAL INDUSTRY CO LTD (1)· patent assignee history
1996Based in Yokohama, JP· patent location history
2000Patents assigned to ALPHA FOODS CO LTD (1)· patent assignee history
2000Based in Shimane, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
ALPHA FOODS CO LTD12000
JAPAN PETROLEUM EXPLORATION CO11996
NIPPON ZEON CO11987
NITTO CHEMICAL INDUSTRY CO LTD11996
Locations
LocationPatentsSpan
Shimane, JP12000
Yokohama, JP11996
Kamakura, JP11987