Masahiko Ishiyama

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Hirakata, JP

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Patents Grantslast 30 patents

Information Patent Grant
Gear device
- Patent number 8,904,896
- Issue date Dec 9, 2014
- Komatsu Ltd.
- Masao Ohno
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING

Patents Applicationslast 30 patents

Information Patent Application
ROTARY DRIVE SYSTEM AND HYDRAULIC EXCAVATOR
- Publication number 20210189687
- Publication date Jun 24, 2021
- Komatsu Ltd.
- Akira Minamiura
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Application
SPEED REDUCER, ROTARY DRIVE SYSTEM, AND HYDRAULIC SHOVEL
- Publication number 20200284310
- Publication date Sep 10, 2020
- Komatsu Ltd.
- Akira Minamiura
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...