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Inventor

Kiyonobu Fujii

Inventor
Okayama, JP

Overview

4→
Patents
1983–1986
Patent span
Chemistry
Primary field (CPC C)

Patents· 4 as inventor

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

C08Kprimary
C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients29%
B29CShaping or joining of plastics14%
C08JWorking-up14%
H04RLoudspeakers, microphones, gramophone pick-ups or like acoustic electromechanical transducers14%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests14%
Y10TTechnical subjects covered by former us classification14%
PatentTitleYear
4,604,441'Polypropylene sheet'19864,560,715'Mica flake mass and resin composition with the same incorporated therein'19854,555,439'Tough thermoplastic resin sheet-like material'19854,412,103'Diaphragm for an electro-acoustic transducer'1983

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1983–1986Patents assigned to KURARAY CO (4)· patent assignee history
1983–1986Based in Okayama, JP· patent location history
1985Based in Mabi, JP· patent location history
1985Based in Kibi, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
KURARAY CO41983–1986
Locations
LocationPatentsSpan
Okayama, JP21983–1986
Mabi, JP11985
Kibi, JP11985