Hiroaki Arai

Person

Osaka, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Eddy current flaw detection device
- Patent number 11,415,549
- Issue date Aug 16, 2022
- Hitachi Zosen Corporation
- Hiroaki Arai
- G01 - MEASURING TESTING
Information Patent Grant
Eddy current flaw detection device and eddy current flaw detection...
- Patent number 11,320,401
- Issue date May 3, 2022
- Hitachi Zosen Corporation
- Hiroaki Arai
- G01 - MEASURING TESTING
Information Patent Grant
Eddy current flaw detection device
- Patent number 11,143,621
- Issue date Oct 12, 2021
- Hitachi Zosen Corporation
- Hiroaki Arai
- G01 - MEASURING TESTING
Information Patent Grant
Concrete cask
- Patent number 10,923,241
- Issue date Feb 16, 2021
- Hitachi Zosen Corporation
- Hiroaki Arai
- G21 - NUCLEAR PHYSICS NUCLEAR ENGINEERING
Information Patent Grant
Door structure for floating flap gate
- Patent number 9,926,682
- Issue date Mar 27, 2018
- Hitachi Zosen Corporation
- Hiroaki Arai
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information Patent Grant
Containment cask for radioactive material
- Patent number 9,779,844
- Issue date Oct 3, 2017
- Hitachi Zosen Corporation
- Hiroaki Arai
- G21 - NUCLEAR PHYSICS NUCLEAR ENGINEERING
Information Patent Grant
Plastic sorter
- Patent number 6,720,514
- Issue date Apr 13, 2004
- Hitachi Zosen Corporation
- Tetsuya Inoue
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Blasting apparatus, blasting method and retainer member used for th...
- Patent number 6,431,074
- Issue date Aug 13, 2002
- Hitachi Zosen Corporation
- Hiroaki Arai
- F42 - AMMUNITION BLASTING
Information Patent Grant
Method and apparatus for separating plastic
- Patent number 6,426,474
- Issue date Jul 30, 2002
- Hitachi Zosen Corporation
- Hidehiko Maehata
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Blasting apparatus
- Patent number 6,408,761
- Issue date Jun 25, 2002
- Hitachi Zosen Corporation
- Hiroaki Arai
- F42 - AMMUNITION BLASTING
Information Patent Grant
Blasting apparatus and blasting method
- Patent number 6,389,973
- Issue date May 21, 2002
- Hitachi Zosen Corporation
- Hiroaki Arai
- F42 - AMMUNITION BLASTING
Information Patent Grant
Demolishing apparatus using discharge impulse
- Patent number 6,318,268
- Issue date Nov 20, 2001
- Hitachi Zosen Corporation
- Hidehiko Maehata
- F42 - AMMUNITION BLASTING
Information Patent Grant
Blasting apparatus
- Patent number 6,298,785
- Issue date Oct 9, 2001
- Hitachi Zosen Corporation
- Hidehiko Maehata
- F42 - AMMUNITION BLASTING
Information Patent Grant
Plasma blasting with coaxial electrodes
- Patent number 6,283,555
- Issue date Sep 4, 2001
- Hitachi Zosen Corporation
- Hiroaki Arai
- F42 - AMMUNITION BLASTING
Information Patent Grant
Destroying apparatus and method, and holding member for use in that...
- Patent number 6,279,477
- Issue date Aug 28, 2001
- Hitachi Zosen Corporation
- Hiroaki Arai
- F42 - AMMUNITION BLASTING
Information Patent Grant
Discharge destroying method, discharge destroying device and method...
- Patent number 6,145,934
- Issue date Nov 14, 2000
- Hitachi Zosen Corporation
- Hiroaki Arai
- F42 - AMMUNITION BLASTING
Information Patent Grant
Apparatus to prevent the entrance of aquatic species into the intak...
- Patent number 5,078,542
- Issue date Jan 7, 1992
- Hitachi Zosen Corporation
- Tohru Yoshikawa
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING

Patents Applicationslast 30 patents

Information Patent Application
EDDY CURRENT FLAW DETECTION DEVICE
- Publication number 20200292500
- Publication date Sep 17, 2020
- Hitachi Zosen Corporation
- Hiroaki ARAI
- G01 - MEASURING TESTING
Information Patent Application
EDDY CURRENT FLAW DETECTION DEVICE AND EDDY CURRENT FLAW DETECTION...
- Publication number 20200284761
- Publication date Sep 10, 2020
- Hitachi Zosen Corporation
- Hiroaki ARAI
- G21 - NUCLEAR PHYSICS NUCLEAR ENGINEERING
Information Patent Application
EDDY CURRENT FLAW DETECTION DEVICE
- Publication number 20200278321
- Publication date Sep 3, 2020
- Hitachi Zosen Corporation
- Hiroaki ARAI
- G01 - MEASURING TESTING
Information Patent Application
CONCRETE CASK
- Publication number 20200035371
- Publication date Jan 30, 2020
- HITACHI ZOSEN CORPORATION
- Hiroaki ARAI
- G21 - NUCLEAR PHYSICS NUCLEAR ENGINEERING
Information Patent Application
CONTAINMENT CASK FOR RADIOACTIVE MATERIAL
- Publication number 20160284431
- Publication date Sep 29, 2016
- Hitachi Zosen Corporation
- Hiroaki ARAI
- G21 - NUCLEAR PHYSICS NUCLEAR ENGINEERING
Information Patent Application
PIPE
- Publication number 20150300535
- Publication date Oct 22, 2015
- Hitachi Zosen Corporation
- Donghui MA
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Application
PIPE AND METHOD FOR MANUFACTURING PIPE
- Publication number 20150075663
- Publication date Mar 19, 2015
- Hitachi Zosen Corporation
- Donghui Ma
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Application
DOOR STRUCTURE FOR FLOATING FLAP GATE
- Publication number 20140193202
- Publication date Jul 10, 2014
- HITACHI ZOSEN CORPORATION
- Hiroaki Arai
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information Patent Application
Blasting apparatus, blasting method and retainer member used for th...
- Publication number 20010042485
- Publication date Nov 22, 2001
- Hitachi Zosen Corporation
- Hiroaki Arai
- F42 - AMMUNITION BLASTING

Hiroaki Arai

Person

Patents Grantslast 30 patents

Eddy current flaw detection device

Eddy current flaw detection device and eddy current flaw detection...

Eddy current flaw detection device

Concrete cask

Door structure for floating flap gate

Containment cask for radioactive material

Plastic sorter

Blasting apparatus, blasting method and retainer member used for th...

Method and apparatus for separating plastic

Blasting apparatus

Blasting apparatus and blasting method

Demolishing apparatus using discharge impulse

Blasting apparatus

Plasma blasting with coaxial electrodes

Destroying apparatus and method, and holding member for use in that...

Discharge destroying method, discharge destroying device and method...

Apparatus to prevent the entrance of aquatic species into the intak...

Patents Applicationslast 30 patents

EDDY CURRENT FLAW DETECTION DEVICE

EDDY CURRENT FLAW DETECTION DEVICE AND EDDY CURRENT FLAW DETECTION...

EDDY CURRENT FLAW DETECTION DEVICE

CONCRETE CASK

CONTAINMENT CASK FOR RADIOACTIVE MATERIAL

PIPE

PIPE AND METHOD FOR MANUFACTURING PIPE

DOOR STRUCTURE FOR FLOATING FLAP GATE

Blasting apparatus, blasting method and retainer member used for th...