Issued Patents 2003
Showing 1–18 of 18 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6660960 | Method for manufacturing golf club | — | 2003-12-09 |
| 6638183 | Golf club | — | 2003-10-28 |
| 6624594 | Discharge lamp lighting circuit | Akihiro Mochizuki, Masayasu Ito | 2003-09-23 |
| 6617809 | Discharge lamp lighting circuit | Masayasu Ito | 2003-09-09 |
| 6617808 | Discharge-lamp lighting circuit | Masayasu Ito, Akihiro Mochizuki | 2003-09-09 |
| 6617807 | Discharge lamp lighting circuit for a plurality of discharge lamps | Masayasu Ito | 2003-09-09 |
| 6600297 | Power supply unit for regulating output voltage using a series regulator | Tomokazu Suzuki, Masayasu Ito | 2003-07-29 |
| 6597131 | Discharge lamp lighting circuit | Masayasu Ito | 2003-07-22 |
| 6583587 | Discharge lamp lighting circuit | Masayasu Ito | 2003-06-24 |
| 6583585 | Discharge lamp lighting circuit | Toru Nakayama, Masayasu Ito | 2003-06-24 |
| 6563275 | Discharge lamp lighting circuit | Masayasu Ito | 2003-05-13 |
| 6561921 | Iron golf club | — | 2003-05-13 |
| 6552501 | Discharge lamp lighting circuit with protection circuit | Masayasu Ito | 2003-04-22 |
| 6534930 | Discharge lamp lighting circuit with protection circuit | Masayasu Ito | 2003-03-18 |
| 6524198 | Golf club and method of manufacturing the same | — | 2003-02-25 |
| 6522557 | Inverter device | Masayasu Ito | 2003-02-18 |
| 6517448 | Golf club and method for manufacturing the same | — | 2003-02-11 |
| 6504316 | Discharge lamp lighting circuit | Masayasu Ito | 2003-01-07 |