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Inventor

Wataru Katsurashima

Inventor
Tokyo, JP

Overview

4→
Patents
1992–2010
Patent span
Physics
Primary field (CPC G)

Patents· 4 as inventor

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

G02Bprimary
G02BOptical elements, systems or apparatus40%
G06FElectric digital data processing20%
H04LTransmission of digital information, e.g. telegraphic communication20%
Y10TTechnical subjects covered by former us classification20%
PatentTitleYear
7,716,337'Intermediate device which can be introduced and removed in seamless way'20106,785,792'Storage system and data relocation method'20045,422,182'Light transmitting glass fiber'19955,082,347'Tape-like coated optical fiber'1992

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1992–1995Patents assigned to SUMITOMO ELECTRIC INDUSTRIES (2)· patent assignee history
1992Based in Kanagawa, JP· patent location history
1995Patents assigned to NIPPON TELEGRAPH & TELEPHONE (1)· patent assignee history
1995Based in Yokohama, JP· patent location history
2004–2010Patents assigned to NEC CORP (2)· patent assignee history
2004–2010Based in Tokyo, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
NEC CORP22004–2010
SUMITOMO ELECTRIC INDUSTRIES21992–1995
NIPPON TELEGRAPH & TELEPHONE11995
Locations
LocationPatentsSpan
Tokyo, JP22004–2010
Yokohama, JP11995
Kanagawa, JP11992