Inventor

Yoshihiko Oya

Inventor

Kariya, JP

Overview

3→

Patents

1991–1993

Patent span

Performing operations

Primary field (CPC B)

Patents· 3 as inventor

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

B01Dprimary

B01DSeparation33%

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests22%

B29CShaping or joining of plastics11%

B29KIndexing scheme associated with subclasses b29b, b29c or b29d, relating to moulding materials or to materials for moulds, reinforcements, fillers or preformed parts, e.g. inserts11%

B29LIndexing scheme associated with subclass b29c, relating to particular articles11%

Y10TTechnical subjects covered by former us classification11%

PatentTitleYear

5,240,540'Method for producing filter element'1993 5,049,326'Filter element and manufacture method thereof'1991 5,002,666'Filter element and manufacture method thereof'1991

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1991–1993Patents assigned to NIPPON DENSO CO (3)· patent assignee history

1991Based in Kariya, JP· patent location history

1993Based in Takahama, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
NIPPON DENSO CO	3	1991–1993

Locations

Location	Patents	Span
Kariya, JP	2	1991
Takahama, JP	1	1993