Doi; Yoshitaka
Patent Applications and Registrations
Patent applications and USPTO patent grants for Doi; Yoshitaka.The latest application filed is for "polymer electrolyte membrane and membrane-electrode assembly for polymer electrolyte fuel cell".
- Doi; Yoshitaka - Tokyo JP
- Doi; Yoshitaka - Nagoya JP
- Doi; Yoshitaka - Aichi JP
- Doi; Yoshitaka - Chiyoda-ku JP
- Doi; Yoshitaka - Kanagawa JP
- Doi; Yoshitaka - Tajimi JP
| Patent | Date |
|---|---|
| Polymer electrolyte membrane and membrane-electrode assembly for polymer electrolyte fuel cell Grant 9,711,817 - Endoh , et al. July 18, 2 | 2017-07-18 |
| Inorganic board and a method for the manufacturing thereof Grant 7,828,892 - Utagaki , et al. November 9, 2 | 2010-11-09 |
| Polymer Electrolyte Membrane And Membrane-electrode Assembly For Polymer Electrolyte Fuel Cell App 20080118806 - Endoh; Eiji ; et al. | 2008-05-22 |
| Inorganic Board and a Method for the Manufacturing Thereof App 20070245930 - Utagaki; Kazuo ; et al. | 2007-10-25 |
| Membrane-electrode assembly for polymer electrolyte fuel cell App 20070087261 - Endoh; Eiji ; et al. | 2007-04-19 |
| Electron beam-irradiating reaction apparatus Grant 6,724,003 - Doi , et al. April 20, 2 | 2004-04-20 |
| Inorganic board and a method of manufacturing said inorganic board Grant 5,985,061 - Doi , et al. November 16, 1 | 1999-11-16 |
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