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Inventor

Yoshio Ishiai

Inventor
Ota, JP

Overview

5→
Patents
1986–2001
Patent span
Mechanical engineering
Primary field (CPC F)

Patents· 5 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 liquids36%
F04BPositive-displacement machines for liquids18%
F25BRefrigeration machines, plants or systems18%
F01CRotary-piston or oscillating-piston machines or engines9%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests9%
Y10TTechnical subjects covered by former us classification9%
PatentTitleYear
6,189,335'Multi-stage compressing refrigeration device and refrigerator using the device'20015,242,282'Scroll compressor with a driving pin between scrolls and a sliding shaft bearing'19935,242,284'Scroll compressor having limited axial movement between rotating scroll members'19934,759,696'Scroll compressor with biased-open exhaust valve'19884,573,880'Hermetically sealed motor compressor'1986

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1986–2001Patents assigned to SANYO ELECTRIC CO (5)· patent assignee history
1986Patents assigned to TOKYO SANYO ELECTRIC CO (1)· patent assignee history
1986–1993Based in Ota, JP· patent location history
1988Based in Ohta, JP· patent location history
2001Based in Gunma, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
SANYO ELECTRIC CO51986–2001
TOKYO SANYO ELECTRIC CO11986
Locations
LocationPatentsSpan
Ota, JP31986–1993
Gunma, JP12001
Ohta, JP11988