Masahiro Miyagi

Follow

Person

Ohiramachi, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Heat exchanger and process for producing the same
- Patent number 4,898,232
- Issue date Feb 6, 1990
- Hitachi, Ltd.
- Izumi Ochiai
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Apparatus for assembling fins and tubes for heat exchangers
- Patent number 4,698,904
- Issue date Oct 13, 1987
- Hitachi, Ltd.
- Yoshio Nozawa
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Tube-enlarging press for use in heat exchanger fabrication
- Patent number 4,597,171
- Issue date Jul 1, 1986
- Hitachi, Ltd.
- Yukio Kitayama
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Fin-and-tube type heat exchanger
- Patent number 4,593,756
- Issue date Jun 10, 1986
- Hitachi, Ltd.
- Masaaki Itoh
- F28 - HEAT EXCHANGE IN GENERAL
Information Patent Grant
Method of stacking fins of heat exchangers
- Patent number 4,566,359
- Issue date Jan 28, 1986
- Hitachi, Ltd.
- Masahiro Miyagi
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Internally groove forming apparatus for heat exchanging pipes
- Patent number 4,142,392
- Issue date Mar 6, 1979
- Hitachi, Ltd.
- Izumi Ochiai
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...