Inventor

Yukio Kawahara

Inventor

Koto-ku, JP

Overview

2→

Patents

1993–2011

Patent span

Performing operations

Primary field (CPC B)

Patents· 2 as inventor

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

B29Cprimary

B29CShaping or joining of plastics25%

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. inserts25%

G02FOptical devices or arrangements for the control of light by modification of the optical properties of the media of the elements involved therein25%

G03BApparatus or arrangements for taking photographs or for projecting or viewing them25%

PatentTitleYear

7,981,351'Crystallization method of neck of primary molded product for biaxially-oriented blow-molded bottle-shaped container and jig to be used for the same'2011 5,206,673'Reflection type overhead projector'1993

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1993Patents assigned to JAPAN AVIATION ELECTRON (1)· patent assignee history

1993Based in Tokyo, JP· patent location history

2011Patents assigned to YOSHINO KOGYOSHO CO LTD (1)· patent assignee history

2011Based in Koto-ku, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
JAPAN AVIATION ELECTRON	1	1993
YOSHINO KOGYOSHO CO LTD	1	2011

Locations

Location	Patents	Span
Koto-ku, JP	1	2011
Tokyo, JP	1	1993