Inventor

Junzo Otera

Inventor
Okayama, JP

Overview

11→
Patents
1978–2019
Patent span
Chemistry
Primary field (CPC C)

Patents· 11 as inventor

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

C07Dprimary
C07DHeterocyclic compounds26%
C07CAcyclic or carbocyclic compounds17%
C08GMacromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds13%
Y02PClimate change mitigation technologies in the production or processing of goods9%
B29BPreparation or pretreatment of the material to be shaped4%
C07FAcyclic, carbocyclic or heterocyclic compounds containing elements other than carbon, hydrogen, halogen, oxygen, nitrogen, sulfur, selenium or tellurium4%
C08BPolysaccharides4%
C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients4%
C09KMaterials for miscellaneous applications, not provided for elsewhere4%
H01FMagnets4%

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1978–1989Patents assigned to KURARAY CO (4)· patent assignee history
1978Based in Kurashiki, JP· patent location history
1988–2019Based in Okayama, JP· patent location history
1989Based in Okayama-shi, JP· patent location history
1998–2000Patents assigned to NISHIKAWA RUBBER CO LTD (3)· patent assignee history
2000–2006Patents assigned to DAISO CO LTD (3)· patent assignee history
2019Patents assigned to NIPPON STEEL CHEMICAL & MAT CO LTD (1)· patent assignee history
2019Patents assigned to UNIV KYUSHU NAT UNIV CORP (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
KURARAY CO41978–1989
DAISO CO LTD32000–2006
NISHIKAWA RUBBER CO LTD31998–2000
NIPPON STEEL CHEMICAL & MAT CO LTD12019
UNIV KYUSHU NAT UNIV CORP12019
Locations
LocationPatentsSpan
Okayama, JP91988–2019
Okayama-shi, JP11989
Kurashiki, JP11978