Inventor

Hiroshi Yamaoka

Inventor
Kobe, JP

Overview

27→
Patents
1977–2021
Patent span
LOC
Primary field

Patents· 27 as inventor

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

LOC12primary
LOC1241%
B60CVehicle tyres28%
C21BManufacture of iron or steel6%
Y10TTechnical subjects covered by former us classification6%
B62HCycle stands3%
B62KCycles3%
C04BLime, magnesia3%
E05BLocks3%
G01KMeasuring temperature3%
H01CResistors3%

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1977–1978Patents assigned to SUMITOMO METAL IND (2)· patent assignee history
1977–1978Based in Hirakata, JP· patent location history
1987Patents assigned to TDK CORP (1)· patent assignee history
1987Based in Tokyo, JP· patent location history
1998–2006Patents assigned to YAMAHA MOTOR CO LTD (2)· patent assignee history
1998Based in Iwata, JP· patent location history
2006Based in Shizuoka, JP· patent location history
2017–2021Patents assigned to SUMITOMO RUBBER IND (22)· patent assignee history
2017–2021Based in Kobe, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
SUMITOMO RUBBER IND222017–2021
SUMITOMO METAL IND21977–1978
YAMAHA MOTOR CO LTD21998–2006
TDK CORP11987
Locations
LocationPatentsSpan
Kobe, JP222017–2021
Hirakata, JP21977–1978
Shizuoka, JP12006
Iwata, JP11998
Tokyo, JP11987