Inventor

Shigeyasu Yamada

Inventor
Nagoya, JP

Overview

8→
Patents
1978–2021
Patent span
Electricity
Primary field (CPC H)

Patents· 8 as inventor

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

H01Tprimary
H01TSpark gaps42%
G11CStatic stores25%
F02BInternal-combustion piston engines17%
C04BLime, magnesia8%
G01RMeasuring electric variables8%

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1978–1993Patents assigned to NGK SPARK PLUG CO (5)· patent assignee history
1978–1993Based in Nagoya, JP· patent location history
2021Patents assigned to MICRON TECHNOLOGY INC (3)· patent assignee history
2021Based in Tokyo, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
NGK SPARK PLUG CO51978–1993
MICRON TECHNOLOGY INC32021
Locations
LocationPatentsSpan
Nagoya, JP51978–1993
Tokyo, JP12021