Inventor

Kyoji Tachikawa

Inventor
Tokyo, JP

Overview

22→
Patents
1978–2008
Patent span
General tagging of new technological developments
Primary field (CPC Y)

Patents· 22 as inventor

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

H10Nprimary
H10NElectric solid-state devices not otherwise provided for33%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests30%
Y10TTechnical subjects covered by former us classification21%
B22FWorking metallic powder4%
C22CAlloys4%
G06KGraphical data reading4%
C23CCoating metallic material2%
H04NPictorial communication, e.g. television2%
H10PGeneric processes or apparatus for the manufacture or treatment of devices covered by class h102%

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1978–1988Patents assigned to NAT RES INST METALS (15)· patent assignee history
1978–1998Based in Tokyo, JP· patent location history
1989–1990Patents assigned to MINOLTA CAMERA KK (2)· patent assignee history
1989–2001Based in Yamanashi, JP· patent location history
1990–2001Patents assigned to NISCA CORP (2)· patent assignee history
1993–2008Based in Hiratsuka, JP· patent location history
1998Patents assigned to FURUKAWA ELECTRIC CO LTD (1)· patent assignee history
2008Patents assigned to KOBE STEEL LTD (2)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
NAT RES INST METALS151978–1988
KOBE STEEL LTD22008
MINOLTA CAMERA KK21989–1990
NISCA CORP21990–2001
FURUKAWA ELECTRIC CO LTD11998
Locations
LocationPatentsSpan
Tokyo, JP161978–1998
Hiratsuka, JP31993–2008
Yamanashi, JP31989–2001