Inventor

Koichi Shigematsu

Inventor
Tokyo, JP

Overview

15→
Patents
1977–2021
Patent span
Electricity
Primary field (CPC H)

Patents· 15 as inventor

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

B23Kprimary
B23KSoldering or unsoldering17%
H10PGeneric processes or apparatus for the manufacture or treatment of devices covered by class h1017%
H10WGeneric packages, interconnections, connectors or other constructional details of devices covered by class h1013%
H01LSemiconductor devices7%
Y10TTechnical subjects covered by former us classification7%
A61BDiagnosis4%
B28DWorking stone or stone-like materials4%
H01BCables4%
H05KPrinted circuits4%
B23DPlaning2%

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1977–1981Patents assigned to MATSUSHITA ELECTRIC INDUSTRIAL CO LTD (3)· patent assignee history
1977–1981Based in Kawanishi, JP· patent location history
2003–2004Patents assigned to DENSO CORP (2)· patent assignee history
2003–2004Based in Nishikamo-gun, JP· patent location history
2006–2021Patents assigned to DISCO CORP (10)· patent assignee history
2006–2021Based in Tokyo, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
DISCO CORP102006–2021
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD31977–1981
DENSO CORP22003–2004
Locations
LocationPatentsSpan
Tokyo, JP102006–2021
Kawanishi, JP31977–1981
Nishikamo-gun, JP22003–2004