Issued Patents All Time
Showing 1–25 of 28 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11576265 | Manufacturing method for printed circuit board and laser processing machine | Kunio Arai | 2023-02-07 |
| 8075788 | Fabrication method of printed circuit board and printed circuit board machining apparatus | Kunio Arai, Hiroshi Aoyama | 2011-12-13 |
| 7488676 | Manufacturing method of a multi-layered circuit board | Akira Irie, Katsuhiro Nagasawa, Toru Yuki | 2009-02-10 |
| 5888036 | Drill bit and step feeding method | Kunio Arai | 1999-03-30 |
| 5332341 | Pressure foot of printed circuit board drilling apparatus | Kunio Arai, Kazunori Hamada | 1994-07-26 |
| 5315072 | Printed wiring board having blind holes | Kunio Arai | 1994-05-24 |
| 5220715 | Printed circuit board processing apparatus | Tamio Otani, Kunio Saitou | 1993-06-22 |
| 5208761 | Method for the diameter confirmation of drills in a PWB machine | Norio Michigami, Tamio Otani, Hiroyuki Kamata | 1993-05-04 |
| 5205805 | Printed circuit board processing machine incorporating tool holding device | Tamio Otani, Tetsuo Murakami | 1993-04-27 |
| 5199830 | Printed circuit board presser device in drilling machine | Tamio Otani, Kazuhiro Kogure, Kunio Arai, Kazunori Hamada | 1993-04-06 |
| 5123789 | Method of and apparatus for machining printed circuit board | Tamio Ohtani, Tuyoshi Yamaguchi | 1992-06-23 |
| 5109584 | Printed circuit board adapter supplying apparatus and method for use in printed circuit board drilling apparatus | Akira Irie, Tamio Ohtani | 1992-05-05 |
| 5108236 | Low mass spindle and Z-axis unit | Kunio Arai | 1992-04-28 |
| 5094574 | Spot facing method and apparatus for printed circuit board | Masao Nishigai, Tamio Otani | 1992-03-10 |
| 5087156 | Printed circuit board boring machine | Tamio Otani, Kunio Arai | 1992-02-11 |
| 5078558 | Low mass spindle and Z-axis unit | Kunio Arai | 1992-01-07 |
| 5066171 | Method for drilling a printed circuit board | Kunio Arai, Hiromi Nishiyama, Hiroshi Aoyama | 1991-11-19 |
| 5029097 | Tool detecting apparatus | Norio Michigami, Tamio Otani | 1991-07-02 |
| 5011345 | Contour machining method and apparatus for printed circuit board | Masao Nishigai, Tamio Otani, Tetsuo Murakami | 1991-04-30 |
| 5010232 | Method of and apparatus for perforating printed circuit board | Kunio Arai | 1991-04-23 |
| 4997319 | Apparatus for drilling a hole in a printed circuit board | Kunio Arai, Hiromi Nishiyama, Hiroshi Aoyama | 1991-03-05 |
| 4982831 | Printed circuit board adapter supplying apparatus and method for use in printed circuit board drilling apparatus | Akira Irie, Tamio Ohtani | 1991-01-08 |
| 4966508 | Work holding device for cutting printed boards | Tamio Otani, Masao Nishigai | 1990-10-30 |
| 4915550 | Pressure foot of printed circuit board drilling apparatus | Kunio Arai | 1990-04-10 |
| 4872787 | Method of drilling printed circuit board | Kunio Arai, Hiromi Nishiyama, Hiroshi Aoyama | 1989-10-10 |