| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Japan | 41 |
| # | Industry | |
|---|---|---|
| #1 | Mechanical elements | |
| #2 | Packaging and shipping |
| # | Technology | |
|---|---|---|
| #1 | Clutches and brakes | |
| #2 | Springs | |
| #3 | Gearing | |
| #4 | Containers for goods storage |
| # | Name | Total Patents |
|---|---|---|
| #1 | Tokunaga Keisoku | 40 |
| #2 | Tokunaga Shigenori | 1 |
| Publication | Filing date | Title |
|---|---|---|
| JPH0847627A | Agitation mechanism | |
| JPH0658342A | Shaft coupling | |
| JPH05187453A | Shaft coupling | |
| JPH0510345A | Shaft coupling | |
| JPH084781A | Shaft coupling | |
| JPH0510408A | Lever device | |
| JPH04191548A | Continuously variable transmission | |
| JPH04191525A | Shaft coupling | |
| JPH04191524A | Shaft coupling | |
| JPH04191517A | Bearing device | |
| JPH04191553A | Gear | |
| JPH04154541A | Container besides acting as toy | |
| JPH04154540A | Box | |
| JPH04154539A | Box | |
| JPH04154538A | Assemblying of box | |
| JPH0439445A | Transmitting device | |
| JPH0439418A | Shaft coupling | |
| JPH0439421A | Shaft joint | |
| JPH0429619A | Shaft coupling | |
| JPH0429681A | Valve body |