Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7348537 | Multi-optical axis photoelectric sensor system | Tetsuya Akagi, Satoru Shimokawa, Takayoshi Takahara, Kazunori Osako | 2008-03-25 |
| 5142416 | Reflection-type photoelectric switch, fresnel lens and method of manufacturing said lens | Arata Nakamura, Tetuya Akagi, Satoru Shimokawa, Shinya Tamino | 1992-08-25 |
| 5026978 | Photoelectric switch having pulse driver circuitry | Masazumi Ueda, Masato Hara, Yutaka Matsui, Kiyoshi Imai | 1991-06-25 |