LexDanaLexDanabeta
Inventor

Tomio Yoshikawa

Inventor
Shimizu, JP

Overview

14→
Patents
1985–2014
Patent span
Mechanical engineering
Primary field (CPC F)

Patents· 14 as inventor

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

H02Kprimary
H02KDynamo-electric machines22%
F25BRefrigeration machines, plants or systems19%
G05DSystems for controlling or regulating non-electric variables16%
F25DRefrigerators9%
Y02BClimate change mitigation technologies related to buildings, e.g. housing, house appliances or related end-user applications9%
F04CRotary-piston, or oscillating-piston, positive-displacement machines for liquids6%
B22DCasting of metals3%
F04BPositive-displacement machines for liquids3%
F24FAir-conditioning3%
F28DHeat-exchange apparatus, not provided for in another subclass, in which the heat-exchange media do not come into direct contact3%
PatentTitleYear
8,836,192'Axial gap rotating electrical machine and rotor used therefor'20148,405,272'Self-starting permanent magnet synchronous motor and compressor and refrigeration cycle using the same'20137,902,713'Self-starting type permanent magnet synchronous motor and a compressor using the same'20117,772,736'Permanent magnet synchronous motor, rotor of the same, and compressor using the same'20107,531,934'Self-start synchronous motor with permanent magnets and at least one frictional agitation joint, method for manufacturing the same and compressor comprising the same'20097,501,734'Motor, compressor, and air conditioner'20097,453,181'Permanent magnet synchronous motor and compressor using the same'20085,335,708'Cooling apparatus and temperature control method therefor'19945,224,354'Control system for refrigerating apparatus'19935,201,187'System for controlling cooling equipment'19935,097,670'Water chilling method and apparatus for the same'19925,058,389'Fluid temperature control system and computer system using same'19914,910,968'Refrigerating apparatus'19904,557,114'Control circuit for air conditioner'1985

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1985–1994Patents assigned to HITACHI LTD (7)· patent assignee history
1985–2010Based in Shimizu, JP· patent location history
2008–2014Patents assigned to HITACHI APPLIANCES INC (7)· patent assignee history
2008–2009Based in Shizuoka, JP· patent location history
2009–2014Based in Mishima, JP· patent location history
2013–2014Patents assigned to YOSHIKAWA TOMIO (2)· patent assignee history
2014Patents assigned to ENOMOTO YUJI (1)· patent assignee history
2014Patents assigned to HITACHI IND EQUIPMENT SYS (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
HITACHI APPLIANCES INC72008–2014
HITACHI LTD71985–1994
YOSHIKAWA TOMIOself22013–2014
ENOMOTO YUJI12014
HITACHI IND EQUIPMENT SYS12014
Locations
LocationPatentsSpan
Shimizu, JP81985–2010
Mishima, JP42009–2014
Shizuoka, JP22008–2009