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AIZAWA HITOYOSHI

Overview
  • Total Patents
    22
About

AIZAWA HITOYOSHI has a total of 22 patent applications. Its first patent ever was published in 1996. It filed its patents most often in Japan. Its main competitors in its focus markets thermal processes, machines and mechanical elements are DESERT AIRE CORP, SHENZHEN TEKTINO CO LTD and MORIMOTO HIROYUKI.

Patent filings in countries

World map showing AIZAWA HITOYOSHIs patent filings in countries
# Country Total Patents
#1 Japan 22

Patent filings per year

Chart showing AIZAWA HITOYOSHIs patent filings per year from 1900 to 2020

Focus industries

Top inventors

# Name Total Patents
#1 Aizawa Hitoyoshi 22

Latest patents

Publication Filing date Title
JP2003136415A Exclusive spanner for pressing nut
JP2002235885A Stop valve
JP2002276834A Stop valve for coolant piping and stop valve for double pipe
JP2002243083A Fluid piping, fluid branch part, fluid pipe connecting equipment and fitting and removing method of fluid pipe connecting equipment
JP2002228194A Connector for fluid device and fluid device
JP2002197156A Container transportation managing system for refrigerant sealed-apparatus
JP2002189796A System and method for managing liquid using device
JP2002189794A System for managing environmental pollutant
JP2001304431A Joined valve, sealing part using the same, and method of sealing environmental destructive fluid using joined valve
JPH11325517A Refrigerant piping device for room air-conditioner
JPH11208364A Moving mehtod of rental air-conditioning equipment
JPH1148855A Deck for traveling load
JPH1151512A Heat exchanging apparatus and handling method therefor
JPH10148425A Heat exchanger, refrigerant re-using method and refrigerant recovery method therefor
JPH1089815A Heat exchanger and refrigerant resupplying method therefor
JPH10197107A Method of recovering refrigerant in heat exchanger and method of re-supplying refrigerant
JPH10141786A Refrigerant sealing apparatus of heat exchanger and refrigerant-sealing method thereof
JPH1054588A Connector of refrigerant pipings of heat exchanger
JPH1047815A Refrigerant recovery plant device for heat exchanger
JPH1047814A Recovery method for refrigerant in heat exchanger