Inventor

Yasumasa Yukawa

Inventor

Ichihara, JP

Overview

5→

Patents

1996–2016

Patent span

Performing operations

Primary field (CPC B)

Patents· 5 as inventor

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

Y10Tprimary

Y10TTechnical subjects covered by former us classification29%

B41MPrinting, duplicating, marking, or copying processes21%

C08JWorking-up14%

B29CShaping or joining of plastics7%

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. inserts7%

C08LCompositions of macromolecular compounds7%

H01MProcesses or means, e.g. batteries, for the direct conversion of chemical energy into electrical energy7%

Y02EReduction of greenhouse gas [ghg] emissions, related to energy generation, transmission or distribution7%

PatentTitleYear

9,440,382'Method of manufacture of polytetrafluoroethylene stretched film, and polytetrafluoroethylene stretched film'2016 8,337,984'Carrier film for fuel cell production process and its production method'2012 6,626,531'Ink jet recording medium for pigment ink and ink jet recording method'2003 6,187,419'Recording medium for pigment ink'2001 5,523,149'Alumina sol coated recording sheet'1996

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1996–2012Patents assigned to ASAHI GLASS CO LTD (4)· patent assignee history

1996–2001Based in Yokohama, JP· patent location history

2003–2016Based in Ichihara, JP· patent location history

2012–2016Patents assigned to YUKAWA YASUMASA (2)· patent assignee history

2012Patents assigned to OKUYA TAMAO (1)· patent assignee history

2012Based in Chiyoda-ku, JP· patent location history

2016Patents assigned to MATSUOKA YASUHIKO (1)· patent assignee history

2016Patents assigned to NAT UNIV CORP GUNMA UNIV (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
ASAHI GLASS CO LTD	4	1996–2012
YUKAWA YASUMASAself	2	2012–2016
MATSUOKA YASUHIKO	1	2016
NAT UNIV CORP GUNMA UNIV	1	2016
OKUYA TAMAO	1	2012

Locations

Location	Patents	Span
Ichihara, JP	2	2003–2016
Yokohama, JP	2	1996–2001
Chiyoda-ku, JP	1	2012