Inventor

Tomohisa Watanabe

Inventor

Chiba, JP

Overview

1988–2020

Patent span

Chemistry

Primary field (CPC C)

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 ingredients16%

C08LCompositions of macromolecular compounds16%

H01BCables16%

G02BOptical elements, systems or apparatus14%

C09KMaterials for miscellaneous applications, not provided for elsewhere12%

Y10TTechnical subjects covered by former us classification6%

G11BInformation storage based on relative movement between record carrier and transducer4%

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests4%

C01FCompounds of the metals beryllium, magnesium, aluminium, calcium, strontium, barium, radium, thorium, or of the rare-earth metals2%

C01GCompounds containing metals not covered by subclasses c01d or c01f2%

PatentTitleYear

Assembled from patent assignee/location history and declaration credentials.

1988–1990Patents assigned to SUMITOMO METAL MINING CO (2)· patent assignee history

1988Based in Kakura, JP· patent location history

1990Based in Sakura, JP· patent location history

2018–2020Patents assigned to FUJIKURA LTD (8)· patent assignee history

2018–2020Based in Chiba, JP· patent location history

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
FUJIKURA LTD	8	2018–2020
SUMITOMO METAL MINING CO	2	1988–1990

Locations