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Inventor

Katsuhiro Wakahara

Inventor
Nara, JP

Overview

2→
Patents
1990–1999
Patent span
Mechanical engineering
Primary field (CPC F)

Patents· 2 as inventor

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

F25Bprimary
F25BRefrigeration machines, plants or systems67%
Y02BClimate change mitigation technologies related to buildings, e.g. housing, house appliances or related end-user applications33%
PatentTitleYear
5,970,722'Air conditioning apparatus returning refrigerating machine oil to compressor by two restrictors and method of controlling air conditioning apparatus'19994,926,653'Multi-room type air-conditioning equipment'1990

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1990–1999Patents assigned to SHARP KK (2)· patent assignee history
1990–1999Based in Nara, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
SHARP KK21990–1999
Locations
LocationPatentsSpan
Nara, JP21990–1999