LexDanaLexDanabeta
Inventor

Kenya Motoyoshi

Inventor
Itami, JP

Overview

4→
Patents
1976–1991
Patent span
Chemistry
Primary field (CPC C)

Patents· 4 as inventor

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

H01Hprimary
H01HElectric switches29%
Y10TTechnical subjects covered by former us classification29%
C04BLime, magnesia14%
C22CAlloys14%
F01LCyclically operating valves for machines or engines14%
PatentTitleYear
5,023,147'Ceramics-metal jointed body'19914,072,515'Electrical contact material'19784,050,930'Electrical contact material'19773,982,905'Porous valve seat materials for internal combustion engines'1976

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1976Patents assigned to HONDA MOTOR CO LTD (1)· patent assignee history
1976–1978Based in Itami, JP· patent location history
1977–1991Patents assigned to SUMITOMO ELECTRIC INDUSTRIES (3)· patent assignee history
1991Based in Hyogo, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
SUMITOMO ELECTRIC INDUSTRIES31977–1991
HONDA MOTOR CO LTD11976
Locations
LocationPatentsSpan
Itami, JP31976–1978
Hyogo, JP11991