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Inventor

Toshihiko Kumazawa

Inventor
Yokohama, JP

Overview

11→
Patents
1977–2012
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%
Y02PClimate change mitigation technologies in the production or processing of goods26%
B01JChemical or physical processes, e.g. catalysis or colloid chemistry22%
C07CAcyclic or carbocyclic compounds7%
C12QMeasuring or testing processes involving enzymes, nucleic acids or microorganisms7%
C12NMicroorganisms or enzymes4%
C12RIndexing scheme associated with subclasses c12c - c12q, relating to microorganisms4%
G01NInvestigating or analysing materials by determining their chemical or physical properties4%
PatentTitleYear
8,105,766'Method of measuring pyrophosphate'20127,588,910'Hemoglobin A1c determination method, enzyme to be used therefor, and production method thereof'20094,415,508'Apparatus for mixing gases'19834,389,338'Method for manufacture of silver catalyst for production of ethylene oxide'19834,376,209'Process for production of ethylene oxide'19834,368,144'Silver catalyst for production of ethylene oxide'19834,283,580'Process for the production of alkylene glycols'19814,277,632'Process for the production of alkylene glycols'19814,256,604'Method for mixing gases and apparatus used therefor'19814,248,740'Process for preparing silver-supported catalyst for the production of ethylene oxide'19814,039,561'Process for preparing ethylene oxide'1977

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1977–1983Patents assigned to NIPPON CATALYTIC CHEM IND (9)· patent assignee history
1977–1983Based in Yokohama, JP· patent location history
2009–2012Patents assigned to ASAHI KASEI PHARMA CORP (2)· patent assignee history
2009–2012Patents assigned to ICHIBIKI CO LTD (2)· patent assignee history
2009Based in Aichi, JP· patent location history
2012Patents assigned to IKURA YOSHIAKI (1)· patent assignee history
2012Patents assigned to IMAMURA SHIGEYUKI (1)· patent assignee history
2012Based in Kitanagoya, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
NIPPON CATALYTIC CHEM IND91977–1983
ASAHI KASEI PHARMA CORP22009–2012
ICHIBIKI CO LTD22009–2012
IKURA YOSHIAKI12012
IMAMURA SHIGEYUKI12012
Locations
LocationPatentsSpan
Yokohama, JP91977–1983
Kitanagoya, JP12012
Aichi, JP12009