Hirao; Tadashi
Patent Applications and Registrations
Patent applications and USPTO patent grants for Hirao; Tadashi.The latest application filed is for "semiconductor ic device with polysilicon resistor".
- Hirao; Tadashi - Itami JP
- Hirao; Tadashi - Hyogo JP
| Patent | Date |
|---|---|
| Semiconductor IC device with polysilicon resistor Grant 4,949,153 - Hirao , et al. August 14, 1 | 1990-08-14 |
| Method of fabricating a solid state image sensing device Grant 4,791,070 - Hirao , et al. December 13, 1 | 1988-12-13 |
| Method of making a self-aligned bipolar using differential oxidation and diffusion Grant 4,728,618 - Hirao March 1, 1 | 1988-03-01 |
| Solid state image sensing device Grant 4,665,422 - Hirao , et al. May 12, 1 | 1987-05-12 |
| Method of manufacturing semiconductor device using a Czochralski wafer and multiple heat treatment Grant 4,661,166 - Hirao April 28, 1 | 1987-04-28 |
| Solid-state image sensor provided with a bipolar transistor and an MOS transistor Grant 4,651,016 - Hirao March 17, 1 | 1987-03-17 |
| Method of manufacturing semiconductor integrated circuit BI-MOS device Grant 4,486,942 - Hirao December 11, 1 | 1984-12-11 |
| Method of manufacturing a semiconductor integrated circuit BI-MOS device Grant 4,445,268 - Hirao May 1, 1 | 1984-05-01 |
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