Koizumi; Hisao
Patent Applications and Registrations
Patent applications and USPTO patent grants for Koizumi; Hisao.The latest application filed is for "cosmetic".
- Koizumi; Hisao - Osaka JP
- Koizumi; Hisao - Tokyo JP
- Koizumi; Hisao - Zushi JP
| Patent | Date |
|---|---|
| Cosmetic Grant 11,020,331 - Koizumi , et al. June 1, 2 | 2021-06-01 |
| Cosmetic App 20200297598 - KOIZUMI; Hisao ; et al. | 2020-09-24 |
| Video projector with luminance and chrominance optical modulation LCD's Grant 5,663,775 - Kawamura , et al. September 2, 1 | 1997-09-02 |
| Heat transfer apparatus Grant 5,203,399 - Koizumi April 20, 1 | 1993-04-20 |
| Vacuum insulated storage-type electric water heater having an external bubble pump heating unit Grant 5,006,689 - Kurachi , et al. * April 9, 1 | 1991-04-09 |
| Storage type electric water heater having a closed circulation loop with a bubble pump Grant 4,959,526 - Kurachi , et al. September 25, 1 | 1990-09-25 |
| Storage type electric water heater having a closed circulation loop provided with a bubble pump Grant 4,818,845 - Koizumi , et al. April 4, 1 | 1989-04-04 |
| Air type solar heating system Grant 4,137,898 - Koizumi , et al. February 6, 1 | 1979-02-06 |
| Hot air type solar heat-collecting apparatus Grant 4,108,155 - Koizumi , et al. August 22, 1 | 1978-08-22 |
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