Inventor

Keiichi Hori

Inventor

Hyogo, JP

Overview

1981–2012

Patent span

Performing operations

Primary field (CPC B)

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

B41Jprimary

B41JTypewriters27%

A61BDiagnosis18%

B01JChemical or physical processes, e.g. catalysis or colloid chemistry9%

C06BExplosives or thermic compositions9%

F17CVessels for containing or storing compressed, liquefied or solidified gases9%

F22BMethods of steam generation9%

F28GCleaning of internal or external surfaces of heat-exchange or heat-transfer conduits, e.g. water tubes or boilers9%

H01JElectric discharge tubes or discharge lamps9%

PatentTitleYear

Assembled from patent assignee/location history and declaration credentials.

1981–2004Patents assigned to MITSUBISHI HEAVY IND LTD (4)· patent assignee history

1981–2004Based in Hyogo, JP· patent location history

1986Patents assigned to ELM CO LTD (2)· patent assignee history

1986–1987Based in Tokyo, JP· patent location history

1987Patents assigned to ELM COMPANY LTD (1)· patent assignee history

1987Based in Hiroshima, JP· patent location history

2012Patents assigned to DAICEL CHEM (1)· patent assignee history

2012Patents assigned to HORI KEIICHI (1)· patent assignee history

2012Based in Kanagawa, JP· patent location history

Assignee and location history derived from the patent record.

Assignees

Locations