| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Japan | 21 | |
| #2 | Germany | 1 | |
| #3 | Italy | 1 | |
| #4 | United States | 1 |
| # | Industry | |
|---|---|---|
| #1 | Machines | |
| #2 | Mechanical elements | |
| #3 | Transport | |
| #4 | Environmental technology |
| # | Technology | |
|---|---|---|
| #1 | Vehicle wheels | |
| #2 | Shafts | |
| #3 | Unspecified technologies | |
| #4 | Climate change mitigation in transportation |
| # | Name | Total Patents |
|---|---|---|
| #1 | Asai Kiyoharu | 13 |
| #2 | Shimizu Tatsu | 3 |
| #3 | Hozumi Mitsunobu | 3 |
| #4 | Hokaku Mitsunobu | 3 |
| #5 | Shimizu Ryo | 3 |
| #6 | Yoshida Harukazu | 3 |
| #7 | Hirata Sachio | 2 |
| #8 | Kaneko Toshiaki | 1 |
| Publication | Filing date | Title |
|---|---|---|
| JP2020026204A | caster | |
| JP2019182258A | Lock operation device for caster | |
| JP2019147467A | caster | |
| JP2016141365A | caster | |
| JP2016141364A | caster | |
| JP2016101830A | Lock operation device of caster | |
| JP2015229460A | Brake mechanism of caster | |
| JP2015077907A | Caster | |
| JP2013100011A | Braking mechanism of caster | |
| JP2012171396A | Lock operation device of caster | |
| JP2012131313A | Wheel | |
| JP2012131259A | Caster | |
| JP2012101562A | Caster's lock operation device | |
| JP2011251653A | Caster | |
| JP2011156931A | Caster | |
| JP2010274774A | Caster | |
| JP2010100205A | Caster | |
| JP2010069981A | Caster | |
| JP2009248800A | Caster | |
| JP2008302903A | Caster |