Issued Patents 2003
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6634264 | Capstan rest | Tamotsu Emura | 2003-10-21 |
| 6613135 | Pseudo-plastic water based ink for ballpoint pen | Masaru Miyamoto, Shigeru Miyazaki | 2003-09-02 |
| 6605143 | Water based ink composition for writing instrument | Shigeru Miyazaki | 2003-08-12 |
| 6599352 | Water-based ink composition for writing instrument | Masaru Miyamoto, Katsuhiko Shiraishi, Tadashi Kamagata | 2003-07-29 |