| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Japan | 69 | |
| #2 | China | 2 | |
| #3 | EPO (European Patent Office) | 2 | |
| #4 | Republic of Korea | 2 | |
| #5 | United States | 2 | |
| #6 | WIPO (World Intellectual Property Organization) | 2 |
| # | Industry | |
|---|---|---|
| #1 | Measurement | |
| #2 | Materials and metallurgy | |
| #3 | Environmental technology |
| # | Technology | |
|---|---|---|
| #1 | Measuring distances | |
| #2 | Climate change mitigation in goods production | |
| #3 | Casting metal | |
| #4 | Foundry moulding |
| # | Name | Total Patents |
|---|---|---|
| #1 | Maruyama Kiyoshi | 32 |
| #2 | Maruyama Shigeru | 13 |
| #3 | Ebisu Yoshio | 8 |
| #4 | Sekine Kazuyoshi | 6 |
| #5 | Inui Masataka | 5 |
| #6 | Kaida Yasuhisa | 5 |
| #7 | Shiba Kentaro | 4 |
| #8 | Kishida Takaaki | 2 |
| #9 | Utsuki Takashi | 2 |
| #10 | Kiyoshi Maruyama | 2 |
| Publication | Filing date | Title |
|---|---|---|
| JP2020199622A | Adaptor for bit | |
| JP2020165860A | Holder of small tool for operation | |
| JP2020153838A | Spirit level | |
| JP2019197041A | Level holder | |
| JP2019191090A | Leveling instrument holder | |
| JP2019188567A | Tool holder for waist belt hook | |
| JP2019097797A | Pasta cooking method | |
| JP2018202016A | Cooking container | |
| JP2018080973A | Leveling instrument | |
| JP2017144104A | Interdental brush and manufacturing method thereof | |
| JP2017025401A | Metal lamination molding method, lamination molding apparatus, and lamination molding article | |
| JP2016039864A | container | |
| JP2015137956A | Leveling instrument | |
| JP2014095683A | Spirit level | |
| JP2014095632A | Level | |
| JP2014055872A | Level vial | |
| JP2013252308A | Toothbrush | |
| JP2013252307A | Toothbrush | |
| JP2013210349A | Level | |
| JP2012255728A | Level |