Inventor

Kotaro Chiba

Inventor

Tokyo, JP

Overview

1988–2021

Patent span

Mechanical engineering

Primary field (CPC F)

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

F04Cprimary

F04CRotary-piston, or oscillating-piston, positive-displacement machines for liquids18%

B60QArrangement of signalling or lighting devices, the mounting or supporting thereof or circuits therefor, for vehicles in general6%

B60TVehicle brake control systems or parts thereof6%

C01BNon-metallic elements6%

C30BSingle-crystal growth6%

F01CRotary-piston or oscillating-piston machines or engines6%

F04BPositive-displacement machines for liquids6%

F17CVessels for containing or storing compressed, liquefied or solidified gases6%

F25BRefrigeration machines, plants or systems6%

Y02ATechnologies for adaptation to climate change6%

PatentTitleYear

Assembled from patent assignee/location history and declaration credentials.

1988–1991Patents assigned to JAPAN STEEL WORKS LTD (2)· patent assignee history

1988Patents assigned to CHIYODA CHEM ENG CONSTRUCT CO (1)· patent assignee history

1988Based in Muroran, JP· patent location history

1991Based in Hokkaido, JP· patent location history

2016Based in Sagamihara, JP· patent location history

2018Patents assigned to HITACHI JOHNSON CONTROLS AIR CONDITIONING INC (1)· patent assignee history

2018–2021Based in Tokyo, JP· patent location history

2019Patents assigned to HITACHI INDUSTRY EQUIPMENT SYSTEMS CO LTD (1)· patent assignee history

2021Patents assigned to HITACHI LTD (1)· patent assignee history

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
JAPAN STEEL WORKS LTD	2	1988–1991
CHIYODA CHEM ENG CONSTRUCT CO	1	1988
HITACHI INDUSTRY EQUIPMENT SYSTEMS CO LTD	1	2019
HITACHI JOHNSON CONTROLS AIR CONDITIONING INC	1	2018
HITACHI LTD	1	2021

Locations