Inventor

Kouji Yamazaki

Inventor

Ichihara, JP

Overview

1990–2021

Patent span

Physics

Primary field (CPC G)

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

G02Bprimary

G02BOptical elements, systems or apparatus18%

G03CPhotosensitive materials for photographic purposes9%

H10WGeneric packages, interconnections, connectors or other constructional details of devices covered by class h109%

B29DProducing particular articles from plastics or from substances in a plastic state5%

C04BLime, magnesia5%

C08GMacromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds5%

C08JWorking-up5%

C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients5%

C08LCompositions of macromolecular compounds5%

G03FPhotomechanical production of textured or patterned surfaces, e.g. for printing, for processing of semiconductor devices5%

PatentTitleYear

Assembled from patent assignee/location history and declaration credentials.

1990–1991Patents assigned to NEC CORP (2)· patent assignee history

1990–1999Based in Tokyo, JP· patent location history

1991Patents assigned to ALPS ELECTRIC CO LTD (1)· patent assignee history

1998–2014Patents assigned to HITACHI CHEMICAL CO LTD (3)· patent assignee history

1998–2014Based in Ichihara, JP· patent location history

2012–2014Patents assigned to YAMAZAKI KOUJI (2)· patent assignee history

2012Based in Ayase, JP· patent location history

2021Patents assigned to KANTATSU CO LTD (2)· patent assignee history

2021Based in Sukagawa-city, JP· patent location history

2021Based in Sukagawa, JP· patent location history

Assignee and location history derived from the patent record.

Assignees

Locations