| # | Country | Total Patents | |
|---|---|---|---|
| #1 | China | 7 | |
| #2 | United States | 3 | |
| #3 | EPO (European Patent Office) | 1 | |
| #4 | Hong Kong | 1 | |
| #5 | WIPO (World Intellectual Property Organization) | 1 |
| # | Industry | |
|---|---|---|
| #1 | Consumer goods | |
| #2 | Basic materials chemistry | |
| #3 | Measurement | |
| #4 | Macromolecular chemistry and polymers | |
| #5 | Textiles and paper | |
| #6 | Machines | |
| #7 | Mechanical elements |
| # | Technology | |
|---|---|---|
| #1 | Writing or drawing tools | |
| #2 | Coating compositions | |
| #3 | Gearing | |
| #4 | Compounding ingredients | |
| #5 | Unspecified technologies | |
| #6 | Analysing materials | |
| #7 | Stamps |
| # | Name | Total Patents |
|---|---|---|
| #1 | Tozuka Taro | 3 |
| #2 | Ito Yoshihiro | 2 |
| #3 | Kubota Masaaki | 2 |
| #4 | Umemoto Hiroshi | 1 |
| #5 | Takayama Kouichi | 1 |
| #6 | Masuda Hirotaka | 1 |
| #7 | Sugimoto Yasuyuki | 1 |
| #8 | Nishio Yuji | 1 |
| #9 | Iwahara Takashi | 1 |
| #10 | Yamaguchi Susumu | 1 |
| Publication | Filing date | Title |
|---|---|---|
| CN111263796A | Ink composition for water-based ballpoint pen and water-based ballpoint pen using the same | |
| CN108290439A | Ink cartridge and pen tool | |
| US2017088737A1 | Ink composition for reversibly thermochromic stamp and stamp | |
| CN105940296A | Internal liquid for comparison electrode, comparison electrode, and glass electrode | |
| CN105492219A | Oil-based ballpoint pen refill, oil-based ballpoint pen, and ink composition for oil-based ballpoint pen |