Ishiyama; Masahiko
Patent Applications and Registrations
Patent applications and USPTO patent grants for Ishiyama; Masahiko.The latest application filed is for "rotary drive system and hydraulic excavator".
- Ishiyama; Masahiko - Tokyo JP
- Ishiyama; Masahiko - Hirakata JP
- Ishiyama; Masahiko - Yokohama JA
| Patent | Date |
|---|---|
| Rotary Drive System And Hydraulic Excavator App 20210189687 - Minamiura; Akira ; et al. | 2021-06-24 |
| Speed Reducer, Rotary Drive System, And Hydraulic Shovel App 20200284310 - Minamiura; Akira ; et al. | 2020-09-10 |
| Gear device Grant 8,904,896 - Ohno , et al. December 9, 2 | 2014-12-09 |
| Electrically insulating coating glass Grant 3,950,174 - Suzuki , et al. April 13, 1 | 1976-04-13 |
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