Masahiro Otaka

Person

Hitachi, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Fluid jet nozzle and stress improving treatment method using the no...
- Patent number 5,897,062
- Issue date Apr 27, 1999
- Hitachi, Ltd.
- Kunio Enomoto
- G21 - NUCLEAR PHYSICS NUCLEAR ENGINEERING
Information Patent Grant
Measurement system with noise reduction circuit
- Patent number 5,793,203
- Issue date Aug 11, 1998
- Hitachi, Ltd.
- Eriko Takeda
- G01 - MEASURING TESTING
Information Patent Grant
Method and apparatus for performing preventive maintenance on the b...
- Patent number 5,749,384
- Issue date May 12, 1998
- Hitachi, Ltd.
- Eisaku Hayashi
- B08 - CLEANING
Information Patent Grant
Residual stress improving method for members in reactor pressure ve...
- Patent number 5,553,106
- Issue date Sep 3, 1996
- Hitachi, Ltd.
- Kunio Enomoto
- C21 - METALLURGY OF IRON
Information Patent Grant
Apparatus with cancel coil assembly for cancelling a field parallel...
- Patent number 5,537,037
- Issue date Jul 16, 1996
- Hitachi, Ltd.
- Masahiro Otaka
- G01 - MEASURING TESTING
Information Patent Grant
Fluxmeter including squid and pickup coil with flux guiding core an...
- Patent number 5,414,356
- Issue date May 9, 1995
- Hitachi, Ltd.
- Toshihiko Yoshimura
- G01 - MEASURING TESTING
Information Patent Grant
Apparatus for inspecting degradation/damage of a material using an...
- Patent number 5,331,278
- Issue date Jul 19, 1994
- Hitachi, Ltd.
- Stephen Evanson
- G01 - MEASURING TESTING
Information Patent Grant
Method of maintaining housing of reactor pressure vessel and heat t...
- Patent number 5,329,099
- Issue date Jul 12, 1994
- Hitachi, Ltd.
- Kunio Enomoto
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Method of and apparatus for water-jet peening
- Patent number 5,305,361
- Issue date Apr 19, 1994
- Hitachi, Ltd.
- Kunio Enomoto
- C21 - METALLURGY OF IRON
Information Patent Grant
Apparatus for magnetically detecting degradation of metal material...
- Patent number 5,134,368
- Issue date Jul 28, 1992
- Hitachi, Ltd.
- Masahiro Otaka
- G01 - MEASURING TESTING
Information Patent Grant
Method and apparatus utilizing a magnetic field for detecting degra...
- Patent number 5,059,903
- Issue date Oct 22, 1991
- Hitachi, Ltd.
- Masahiro Otaka
- G01 - MEASURING TESTING
Information Patent Grant
Method and apparatus for predicting deterioration of a member const...
- Patent number 4,987,367
- Issue date Jan 22, 1991
- Hitachi, Ltd.
- Yuichi Ishikawa
- G07 - CHECKING-DEVICES
Information Patent Grant
Method and apparatus for detecting cracks
- Patent number 4,764,970
- Issue date Aug 16, 1988
- Hitachi, Ltd.
- Makoto Hayashi
- G01 - MEASURING TESTING

Masahiro Otaka

Person

Patents Grantslast 30 patents

Fluid jet nozzle and stress improving treatment method using the no...

Measurement system with noise reduction circuit

Method and apparatus for performing preventive maintenance on the b...

Residual stress improving method for members in reactor pressure ve...

Apparatus with cancel coil assembly for cancelling a field parallel...

Fluxmeter including squid and pickup coil with flux guiding core an...

Apparatus for inspecting degradation/damage of a material using an...

Method of maintaining housing of reactor pressure vessel and heat t...

Method of and apparatus for water-jet peening

Apparatus for magnetically detecting degradation of metal material...

Method and apparatus utilizing a magnetic field for detecting degra...

Method and apparatus for predicting deterioration of a member const...

Method and apparatus for detecting cracks