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Inventor

Yoko Kumai

Inventor
Nagoya, JP

Overview

2→
Patents
1997–1999
Patent span
Performing operations
Primary field (CPC B)

Patents· 2 as inventor

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

B01Dprimary
B01DSeparation25%
B01JChemical or physical processes, e.g. catalysis or colloid chemistry25%
C01BNon-metallic elements13%
F02BInternal-combustion piston engines13%
Y02ATechnologies for adaptation to climate change13%
Y02TClimate change mitigation technologies related to transportation13%
PatentTitleYear
5,922,293'Process for purifying exhaust gases'19995,686,377'Catalyst for purifying exhaust gases'1997

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1997–1999Patents assigned to TOYOTA MOTOR CO LTD (2)· patent assignee history
1997Patents assigned to CATALER IND CO (1)· patent assignee history
1997Patents assigned to TOYODA CHUO KENKYUSHO KK (1)· patent assignee history
1997Based in Nagaoya, JP· patent location history
1999Based in Nagoya, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
TOYOTA MOTOR CO LTD21997–1999
CATALER IND CO11997
TOYODA CHUO KENKYUSHO KK11997
Locations
LocationPatentsSpan
Nagoya, JP11999
Nagaoya, JP11997