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Inventor

Hatsutaro Yamazaki

Inventor
Saitama, JP

Overview

7→
Patents
1976–2000
Patent span
Chemistry
Primary field (CPC C)

Patents· 7 as inventor

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

B01Jprimary
B01JChemical or physical processes, e.g. catalysis or colloid chemistry29%
C07CAcyclic or carbocyclic compounds21%
C10GCracking hydrocarbon oils21%
Y02PClimate change mitigation technologies in the production or processing of goods14%
C08FMacromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds7%
C08GMacromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds7%
PatentTitleYear
6,063,265'Process for producing hydrodesulfurization catalyst and hydrodesulfurizing gas oil therewith'20005,531,885'Hydroconversion process for heavy hydrocarbon oil'19965,002,919'Catalyst composition for hydrogenation of heavy hydrocarbon oil and process for producing the catalyst'19914,517,349'Process for the production of p-vinyl phenol polymer'19854,503,271'Process for the production of para-vinyl phenol by dehydrogenation of para-ethyl phenol'19854,189,603'Process for producing high-quality terephthalic acid suitable for use in direct polymerization'19803,956,175'Method for recovering a liquid-phase oxidation catalyst for preparation of terephthalic acid'1976

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1976–1980Patents assigned to MATSUYAMA PETROCHEMICALS INC (2)· patent assignee history
1976Based in Matsue, JP· patent location history
1980–1985Patents assigned to MARUZEN OIL CO LTD (3)· patent assignee history
1980Based in Matsuyama, JP· patent location history
1985–2000Based in Saitama, JP· patent location history
1991Patents assigned to COSMO OIL COMPANY & PETROLEUM (1)· patent assignee history
1996–2000Patents assigned to COSMO OIL CO LTD (2)· patent assignee history
1996Patents assigned to COSMO SOGO KENKYUSHO KK (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
MARUZEN OIL CO LTD31980–1985
COSMO OIL CO LTD21996–2000
MATSUYAMA PETROCHEMICALS INC21976–1980
COSMO OIL COMPANY & PETROLEUM11991
COSMO SOGO KENKYUSHO KK11996
Locations
LocationPatentsSpan
Saitama, JP51985–2000
Matsuyama, JP11980
Matsue, JP11976