Inventor

Yuichi Arai

Inventor
Kawasaki, JP

Overview

20→
Patents
1993–2020
Patent span
Performing operations
Primary field (CPC B)

Patents· 20 as inventor

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

B62Bprimary
B62BHand-propelled vehicles, e.g. hand carts or perambulators37%
Y10TTechnical subjects covered by former us classification27%
G11BInformation storage based on relative movement between record carrier and transducer20%
B24BMachines, devices, or processes for grinding or polishing3%
G02BOptical elements, systems or apparatus3%
H05KPrinted circuits3%
LOC253%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests3%

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1993–2007Patents assigned to COMBI CO (10)· patent assignee history
1993–1996Based in Tokyo, JP· patent location history
1998Patents assigned to IBM (2)· patent assignee history
1998Based in Yokohama, JP· patent location history
2002–2007Based in Urawa, JP· patent location history
2004–2006Patents assigned to SEIKO GIKEN KK (2)· patent assignee history
2005–2007Based in Saitama, JP· patent location history
2017–2020Patents assigned to WESTERN DIGITAL TECH INC (5)· patent assignee history
2017Patents assigned to HGST Netherlands BV (3)· patent assignee history
2017–2019Based in Kawasaki, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
COMBI CO101993–2007
WESTERN DIGITAL TECH INC52017–2020
HGST Netherlands BV32017
IBM21998
SEIKO GIKEN KK22004–2006
Locations
LocationPatentsSpan
Kawasaki, JP42017–2019
Urawa, JP42002–2007
Tokyo, JP41993–1996
Saitama, JP32005–2007
Yokohama, JP21998