Inventor

Hidenori Okamoto

Inventor

Tsukuba, JP

Overview

5→

Patents

1990–1996

Patent span

Chemistry

Primary field (CPC C)

Patents· 5 as inventor

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

C07Cprimary

C07CAcyclic or carbocyclic compounds25%

A61KPreparations for medical, dental or toiletry purposes17%

C07DHeterocyclic compounds17%

C08FMacromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds17%

A01NPreservation of bodies of humans or animals or plants or parts thereof8%

C25CProcesses for the electrolytic production, recovery or refining of metals8%

G02FOptical devices or arrangements for the control of light by modification of the optical properties of the media of the elements involved therein8%

PatentTitleYear

5,543,031'Method for recovering indium by electrowinning and apparatus therefor'1996 5,345,330'Single crystal of 3-(2-furyl)methacrylic acid anhydride'1994 5,260,476'Diacrylate compounds'1993 5,171,763'Curable composition'1992 4,895,587'Haloacetamide compounds, process for production thereof, and use thereof as herbicide'1990

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1990–1993Patents assigned to TOKUYAMA SODA KK (3)· patent assignee history

1990Based in Fujisawa, JP· patent location history

1992–1994Based in Tsukuba, JP· patent location history

1994Patents assigned to TOKUYAMA CORP (1)· patent assignee history

1996Patents assigned to NIPPON MINING CO (1)· patent assignee history

1996Based in Ibaraki, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
TOKUYAMA SODA KK	3	1990–1993
NIPPON MINING CO	1	1996
TOKUYAMA CORP	1	1994

Locations

Location	Patents	Span
Tsukuba, JP	3	1992–1994
Ibaraki, JP	1	1996
Fujisawa, JP	1	1990