Inventor

Yoshiyuki Morikawa

Inventor
Otsu, JP

Overview

8→
Patents
1981–2001
Patent span
Chemistry
Primary field (CPC C)

Patents· 8 as inventor

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 liquids21%
B60HArrangements of heating, cooling, ventilating or other air-treating devices specially adapted for passenger or goods spaces of vehicles11%
C08GMacromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds11%
C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients11%
C07DHeterocyclic compounds5%
C08LCompositions of macromolecular compounds5%
C10MLubricating compositions5%
C10NIndexing scheme associated with subclass c10m relating to lubricating compositions5%
F01CRotary-piston or oscillating-piston machines or engines5%
F25BRefrigeration machines, plants or systems5%

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1981Patents assigned to NIPPON OIL CO LTD (1)· patent assignee history
1981Based in Kadoma, JP· patent location history
1982–1993Patents assigned to MATSUSHITA ELECTRIC INDUSTRIAL CO LTD (4)· patent assignee history
1982–1993Based in Otsu, JP· patent location history
1998Patents assigned to TOHTO KASEI CO INC (1)· patent assignee history
1998–2001Based in Tokyo, JP· patent location history
1999Patents assigned to THOTO KASEI CO LTD (1)· patent assignee history
2001Patents assigned to TOTO KASEI KK (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD41982–1993
NIPPON OIL CO LTD11981
THOTO KASEI CO LTD11999
TOHTO KASEI CO INC11998
TOTO KASEI KK12001
Locations
LocationPatentsSpan
Otsu, JP41982–1993
Tokyo, JP31998–2001
Kadoma, JP11981