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Inventor

Yasuhisa Kuriyama

Inventor
Yokkaichi, JP

Overview

11→
Patents
1976–2000
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.

C01Bprimary
C01BNon-metallic elements31%
C07CAcyclic or carbocyclic compounds23%
C11DDetergent compositions23%
A01NPreservation of bodies of humans or animals or plants or parts thereof8%
C02FTreatment of water, waste water, sewage, or sludge8%
C07DHeterocyclic compounds8%
PatentTitleYear
6,159,391'Bleaching agent compositions'20005,986,134'Processes for producing ketazine and hydrazine'19995,929,013'Bleach product'19995,783,550'Mold removal composition and mold bleaching method'19985,744,115'Preparation process of hydrazine hydrate'19984,963,232'Process for producing a purified hydrazine hydrate'19904,561,982'Scale inhibitor'19854,476,314'Process for producing olefin oxides'19844,473,708'Preparation of ketozines using organoarsenic compounds'19843,965,251'Method of regenerating a degraded working solution for the production of hydrogen peroxide'19763,953,482'Process for producing quinones'1976

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1976–1999Patents assigned to MITSUBISHI GAS CHEMICAL CO (8)· patent assignee history
1976–1999Based in Yokkaichi, JP· patent location history
1984–1985Based in Tokyo, JP· patent location history
1998–2000Patents assigned to JOHNSON & SON INC S C (2)· patent assignee history
1999Patents assigned to JOHNSON CO LTD (1)· patent assignee history
1999Based in Mie, JP· patent location history
2000Based in Ibaraki, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
MITSUBISHI GAS CHEMICAL CO81976–1999
JOHNSON & SON INC S C21998–2000
JOHNSON CO LTD11999
Locations
LocationPatentsSpan
Yokkaichi, JP61976–1999
Tokyo, JP31984–1985
Ibaraki, JP12000
Mie, JP11999