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Inventor

Tetsu Takeyama

Inventor
Amagasaki, JP

Overview

5→
Patents
1979–1987
Patent span
Performing operations
Primary field (CPC B)

Patents· 5 as inventor

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

B01Dprimary
B01DSeparation21%
C02FTreatment of water, waste water, sewage, or sludge14%
E03BInstallations or methods for obtaining, collecting, or distributing water14%
Y02ATechnologies for adaptation to climate change14%
A61LMethods or apparatus for sterilising materials or objects in general7%
C12MApparatus for enzymology or microbiology7%
F24FAir-conditioning7%
G01NInvestigating or analysing materials by determining their chemical or physical properties7%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests7%
PatentTitleYear
4,647,540'Automatic observation system for microorganisms and the like'19874,370,301'Dry deodorizing apparatus'19834,365,979'Water producing apparatus'19824,299,599'Water producing apparatus'19814,162,299'Process for the removal of sulfur oxides'1979

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1979Patents assigned to TORAY ENG CO LTD (1)· patent assignee history
1979Based in Kyoto, JP· patent location history
1981–1987Patents assigned to MITSUBISHI ELECTRIC CORP (4)· patent assignee history
1981–1983Based in Amagasaki, JP· patent location history
1987Based in Hyogo, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
MITSUBISHI ELECTRIC CORP41981–1987
TORAY ENG CO LTD11979
Locations
LocationPatentsSpan
Amagasaki, JP31981–1983
Hyogo, JP11987
Kyoto, JP11979