Inventor

Yoshio Doi

Inventor
Ibaraki, JP

Overview

12→
Patents
1977–2016
Patent span
Human necessities
Primary field (CPC A)

Patents· 12 as inventor

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

A61Kprimary
A61KPreparations for medical, dental or toiletry purposes37%
A61PSpecific therapeutic activity of chemical compounds or medicinal preparations16%
Y10TTechnical subjects covered by former us classification16%
B21HMaking particular metal objects by rolling, e.g. screws, wheels, rings, barrels, balls5%
B23BTurning5%
B23QDetails, components, or accessories for machine tools, e.g. arrangements for copying or controlling5%
C22CAlloys5%
G05BControl or regulating systems in general5%
H02JElectric power networks5%

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1977–1985Patents assigned to TOYODA MACHINE WORKS LTD (3)· patent assignee history
1977–1985Based in Kariya, JP· patent location history
1982–1990Patents assigned to SHIONOGI & CO (6)· patent assignee history
1982–1983Based in Ibaraki, JP· patent location history
1983Patents assigned to SHINETSU CHEMICAL CO (2)· patent assignee history
1987Based in Yamaguchi, JP· patent location history
1990Based in Osaka, JP· patent location history
2016Patents assigned to DAIFUKU KK (1)· patent assignee history
2016Patents assigned to DOI YOSHIO (1)· patent assignee history
2016Based in Shiga, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
SHIONOGI & CO61982–1990
TOYODA MACHINE WORKS LTD31977–1985
SHINETSU CHEMICAL CO21983
DAIFUKU KK12016
DOI YOSHIOself12016
Locations
LocationPatentsSpan
Ibaraki, JP41982–1983
Osaka, JP31990
Kariya, JP31977–1985
Shiga, JP12016
Yamaguchi, JP11987