| # | Country | Total Patents | |
|---|---|---|---|
| #1 | France | 6 | |
| #2 | Switzerland | 5 | |
| #3 | Germany | 5 | |
| #4 | EPO (European Patent Office) | 3 | |
| #5 | United States | 3 | |
| #6 | Italy | 2 | |
| #7 | Austria | 1 | |
| #8 | United Kingdom | 1 | |
| #9 | Japan | 1 | |
| #10 | WIPO (World Intellectual Property Organization) | 1 |
| # | Industry | |
|---|---|---|
| #1 | Consumer goods | |
| #2 | Machines |
| # | Technology | |
|---|---|---|
| #1 | Writing or drawing tools | |
| #2 | Unspecified technologies | |
| #3 | Shaping of plastics | |
| #4 | Fillers | |
| #5 | Certain plastics |
| # | Name | Total Patents |
|---|---|---|
| #1 | Ando Kozo | 8 |
| #2 | Hori Hironobu | 7 |
| #3 | Otake Nobuyuki | 5 |
| #4 | Sato Yukinori | 3 |
| #5 | Suzuki Churyo | 2 |
| #6 | Enomoto Tooru | 2 |
| #7 | Kurihara Norigi | 2 |
| #8 | Sakuda Ryotaro | 1 |
| #9 | Sakuda Ryutaro | 1 |
| #10 | Ootake Nobuyuki | 1 |
| Publication | Filing date | Title |
|---|---|---|
| EP0129916A1 | Synthetic resin pen nib | |
| US4076428A | Pen points for writing instruments | |
| US3932044A | Pen point for writing instruments | |
| DE2355188A1 | Fibre tip for writing implement - composed of (pref. acrylic, polyester or nylon) fibre bundles enclosed in axially fluted sleeve for air circulation | |
| US3864183A | Method for producing pen core from filament tows | |
| FR2104351A5 | Plastics pen nib - made by enclosing several extruded slotted profiles in a suitable sheath |