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Inventor

Chikara Sugitawa

Inventor
Otsu, JP

Overview

5→
Patents
1978–2003
Patent span
Chemistry
Primary field (CPC C)

Patents· 5 as inventor

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

C08Gprimary
C08GMacromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds27%
C08LCompositions of macromolecular compounds27%
C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients9%
C09DCoating compositions, e.g. paints, varnishes or lacquers9%
G11BInformation storage based on relative movement between record carrier and transducer9%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests9%
Y10TTechnical subjects covered by former us classification9%
PatentTitleYear
6,545,119'Magnetic recording media and thermoplastic polyurethane resins therefor'20035,695,884'Thermoplastic polyurethane'19974,584,353'Polyester block copolymer composition'19864,442,262'Composition of polyester-block copolymer'19844,110,411'Polyester copolymer compositions'1978

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1978–2003Patents assigned to TOYO BOSEKI (5)· patent assignee history
1978–2003Based in Otsu, JP· patent location history
1984Patents assigned to KUREHA CHEMICAL IND CO LTD (1)· patent assignee history
1984–1997Based in Ohtsu, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
TOYO BOSEKI51978–2003
KUREHA CHEMICAL IND CO LTD11984
Locations
LocationPatentsSpan
Otsu, JP31978–2003
Ohtsu, JP21984–1997