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Ryoichi TAKAFUJI
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Tokyo, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Air-conditioner outdoor heat exchanger and air-conditioner includin...
Patent number
11,274,838
Issue date
Mar 15, 2022
HITACHI-JOHNSON CONTROLS AIR CONDITIONING, INC.
Takumi Hirata
F28 - HEAT EXCHANGE IN GENERAL
Information
Patent Grant
Heat exchanger and air-conditioner
Patent number
11,236,954
Issue date
Feb 1, 2022
HITACHI-JOHNSON CONTROLS AIR CONDITIONING, INC.
Ryoichi Takafuji
F28 - HEAT EXCHANGE IN GENERAL
Information
Patent Grant
Heat exchanger, outdoor unit, refrigeration cycle device, and heat...
Patent number
11,035,623
Issue date
Jun 15, 2021
HITACHI-JOHNSON CONROLS AIR CONDITIONING, INC.
Takumi Hirata
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Heat exchanger and air conditioner
Patent number
10,557,652
Issue date
Feb 11, 2020
HITACHI-JOHNSON CONTROLS AIR CONDITIONING, INC.
Daiwa Sato
F28 - HEAT EXCHANGE IN GENERAL
Patents Applications
last 30 patents
Information
Patent Application
AIR-CONDITIONER OUTDOOR HEAT EXCHANGER AND AIR-CONDITIONER INCLUDIN...
Publication number
20200072478
Publication date
Mar 5, 2020
Hitachi-Johnson Controls Air Conditioning, Inc.
Takumi HIRATA
F28 - HEAT EXCHANGE IN GENERAL
Information
Patent Application
HEAT EXCHANGER AND AIR-CONDITIONER
Publication number
20190339027
Publication date
Nov 7, 2019
Hitachi-Johnson Controls Air Conditioning, Inc.
Ryoichi TAKAFUJI
F28 - HEAT EXCHANGE IN GENERAL
Information
Patent Application
HEAT EXCHANGER AND AIR CONDITIONER
Publication number
20190285321
Publication date
Sep 19, 2019
Hitachi-Johnson Controls Air Conditioning, Inc.
Daiwa SATO
F28 - HEAT EXCHANGE IN GENERAL
Information
Patent Application
HEAT EXCHANGER, OUTDOOR UNIT, REFRIGERATION CYCLE DEVICE, AND HEAT...
Publication number
20190271512
Publication date
Sep 5, 2019
HITACHI-JOHNSON CONROLS AIR CONDITIONING, INC.
Takumi HIRATA
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR