Tokuji Maruyama

Person

Yokohama, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Welding device and welding method
- Patent number 11,511,365
- Issue date Nov 29, 2022
- Kobe Steel, Ltd.
- Naoki Kawabe
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Welding torch
- Patent number 11,484,962
- Issue date Nov 1, 2022
- Kobe Steel, Ltd.
- Naoki Mukai
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Welding method using special torch
- Patent number 11,203,080
- Issue date Dec 21, 2021
- Kobe Steel, Ltd.
- Naoki Mukai
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Output control of short circuit welding power source
- Patent number RE33330
- Issue date Sep 11, 1990
- Kabushiki Kaisha Kobe Seiko Sho
- Takaaki Ogasawara
- 219 - Electric heating
Information Patent Grant
Power supply system for consumable electrode arc welding and method...
- Patent number 4,877,941
- Issue date Oct 31, 1989
- Kabushiki Kaisha Kobe Seiko Sho
- Masahiro Honma
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Output control of short circuit welding power source
- Patent number 4,546,234
- Issue date Oct 8, 1985
- Kabushiki Kaisha Kobe Seiko Sho
- Takaaki Ogasawara
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Method and device for controlling welding power supply to avoid spa...
- Patent number 4,544,826
- Issue date Oct 1, 1985
- Kabushiki Kaisha Kobe Seiko Sho
- Sadao Nakanishi
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
DC Welding power supply system
- Patent number 4,503,316
- Issue date Mar 5, 1985
- Kabushiki Kaisha Kobe Seiko Sho
- Kazuo Murase
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Welding torch weaving device
- Patent number 4,292,495
- Issue date Sep 29, 1981
- Kobe Steel, Limited
- Takashi Saito
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR

Patents Applicationslast 30 patents

Information Patent Application
ARC WELDING DEVICE
- Publication number 20190111511
- Publication date Apr 18, 2019
- Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)
- Tokuji MARUYAMA
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Application
WELDING TORCH
- Publication number 20190047072
- Publication date Feb 14, 2019
- Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)
- Naoki MUKAI
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Application
WELDING METHOD USING SPECIAL TORCH
- Publication number 20190030636
- Publication date Jan 31, 2019
- Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)
- Naoki MUKAI
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Application
WELDING DEVICE AND WELDING METHOD
- Publication number 20180015561
- Publication date Jan 18, 2018
- Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)
- Naoki KAWABE
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR

Tokuji Maruyama

Person

Patents Grantslast 30 patents

Welding device and welding method

Welding torch

Welding method using special torch

Output control of short circuit welding power source

Power supply system for consumable electrode arc welding and method...

Output control of short circuit welding power source

Method and device for controlling welding power supply to avoid spa...

DC Welding power supply system

Welding torch weaving device

Patents Applicationslast 30 patents

ARC WELDING DEVICE

WELDING TORCH

WELDING METHOD USING SPECIAL TORCH

WELDING DEVICE AND WELDING METHOD