Inventor

Kaoru Umeya

Inventor

Sendai, JP

Overview

1986–1996

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 ingredients14%

B01JChemical or physical processes, e.g. catalysis or colloid chemistry7%

B02CCrushing, pulverising, or disintegrating in general7%

B22FWorking metallic powder7%

B29CShaping or joining of plastics7%

C04BLime, magnesia7%

C08JWorking-up7%

C23CCoating metallic material7%

D01FChemical features in the manufacture of artificial filaments, threads, fibres, bristles or ribbons7%

D06MTreatment, not provided for elsewhere in class d06, of fibres, threads, yarns, fabrics, feathers or fibrous goods made from such materials7%

PatentTitleYear

Assembled from patent assignee/location history and declaration credentials.

1986Patents assigned to CENTRAL GLASS CO LTD (1)· patent assignee history

1986–1989Based in Sendai, JP· patent location history

1989Patents assigned to UBE INDUSTRIES (1)· patent assignee history

1996Patents assigned to NISSHIN FLOUR MILLING CO (2)· patent assignee history

1996Patents assigned to UMEYA KAORU (2)· patent assignee history

1996Patents assigned to RYOBI LTD (1)· patent assignee history

1996Based in Taihaku-ku, Sendai-shi, Miyagi-ken, JP· patent location history

1996Based in Miyagi, JP· patent location history

Assignee and location history derived from the patent record.

Assignees

Locations

Location	Patents	Span
Sendai, JP	2	1986–1989
Taihaku-ku, Sendai-shi, Miyagi-ken, JP	1	1996
Miyagi, JP	1	1996