Yoshinaga; Sadao
Patent Applications and Registrations
Patent applications and USPTO patent grants for Yoshinaga; Sadao.The latest application filed is for "writing tool including openable decorative article at shaft end".
- Yoshinaga; Sadao - Ichikawa JP
- Yoshinaga; Sadao - Chiba JP
- Yoshinaga; Sadao - Tokyo JA
| Patent | Date |
|---|---|
| Writing tool including openable decorative article at shaft end Grant 5,083,881 - Yoshinaga January 28, 1 | 1992-01-28 |
| Gas combustion type dryer Grant 4,995,171 - Yoshinaga , et al. February 26, 1 | 1991-02-26 |
| Ball-point pen Grant D313,041 - Kim , et al. December 18, 1 | 1990-12-18 |
| Burner device Grant 4,938,686 - Yoshinaga July 3, 1 | 1990-07-03 |
| Ball-point pen Grant D306,457 - Kim , et al. March 6, 1 | 1990-03-06 |
| Ball-point pen Grant D305,910 - Kim , et al. February 6, 1 | 1990-02-06 |
| Ball-point pen Grant D305,776 - Kim , et al. January 30, 1 | 1990-01-30 |
| Hand-held piezo electric torch Grant D299,000 - Yoshinaga December 20, 1 | 1988-12-20 |
| Lighter Grant D297,269 - Yoshinaga August 16, 1 | 1988-08-16 |
| Lighter Grant D292,029 - Yoshinaga September 22, 1 | 1987-09-22 |
| Thermal fumigator for drugs Grant 4,693,868 - Katsuda , et al. September 15, 1 | 1987-09-15 |
| Lighter Grant D284,796 - Yoshinaga July 22, 1 | 1986-07-22 |
| Burner device Grant 4,597,732 - Yoshinaga July 1, 1 | 1986-07-01 |
| Catalyst combustion curling device Grant 4,502,465 - Yoshinaga , et al. March 5, 1 | 1985-03-05 |
| Cigarette lighter Grant D245,269 - Yoshinaga August 2, 1 | 1977-08-02 |
| Filter Ejector Grant 3,805,808 - Yoshinaga April 23, 1 | 1974-04-23 |
| Filter Apparatus For Removing Tar And Other Deleterious Substances From Tobacco Smoke Grant 3,777,765 - Yoshinaga December 11, 1 | 1973-12-11 |
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