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Inventor

Katsumi Umehara

Inventor
Kawasaki, JP

Overview

3→
Patents
2008–2021
Patent span
Chemistry
Primary field (CPC C)

Patents· 3 as inventor

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

C10Lprimary
C10LFuels not otherwise provided for67%
B41JTypewriters33%
PatentTitleYear
11,124,004Printing apparatus20218,388,704'Fuel additive composition and fuel composition containing the same'20137,438,731'Fuel additive composition and fuel composition containing the same'2008

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2008Patents assigned to CHEVRONTEXACO JAPAN LTD (1)· patent assignee history
2008Based in Shizuoka, JP· patent location history
2013Patents assigned to CHEVRON TEXACO JAPAN LTD (1)· patent assignee history
2013Patents assigned to OHTA SATOSHI (1)· patent assignee history
2013Patents assigned to UMEHARA KATSUMI (1)· patent assignee history
2013Based in Haibara-gun, JP· patent location history
2021Patents assigned to CANON KK (1)· patent assignee history
2021Based in Kawasaki, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
CANON KK12021
CHEVRON TEXACO JAPAN LTD12013
CHEVRONTEXACO JAPAN LTD12008
OHTA SATOSHI12013
UMEHARA KATSUMIself12013
Locations
LocationPatentsSpan
Kawasaki, JP12021
Haibara-gun, JP12013
Shizuoka, JP12008