| Presentation | 1998/5/30 Basic research on coloring material for an invisible bar code [I] Shirou Yamamiya, Hideo Makino, Mikihiko Hirono, Shinji Watanabe, Ikuo Ishii, |
|---|---|
| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Toward the goal of developing an invisible bar code, we did research on the characteristics of special infrared-transparent pigment and found a special black pigment which has high infrared light transparency (AM-BK). The pigment has both the property of appearing black and stable optical characteristics under ordinary visible light (light-fastness), along with the usual characteristics of coloring materials. In experiments, we demonstrated a black color type of invisible bar code using the combination of AM-BK and carbon black (CB). Furthermore, we also found that the infrared transparent ratio was decreased exponentioally with addiional amounts of CB. This means that it will be possible to develop a type of invisible bar code varying in shades of gray. Development of this new type of inivisible bar code raises the possibility of obtaining both high security bar codes and bar codes that are higher in density than ordinary 2-dimensional ones. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | invisible / bar code / infrared transparency / black pigment / gray scale / high density / security |
| Paper # | |
| Date of Issue |
| Conference Information | |
| Committee | MBE |
|---|---|
| Conference Date | 1998/5/30(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | |
| Vice Chair | |
| Secretary | |
| Assistant | |
| Paper Information | |
| Registration To | ME and Bio Cybernetics (MBE) |
|---|---|
| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Basic research on coloring material for an invisible bar code [I] |
| Sub Title (in English) | |
| Keyword(1) | invisible |
| Keyword(2) | bar code |
| Keyword(3) | infrared transparency |
| Keyword(4) | black pigment |
| Keyword(5) | gray scale |
| Keyword(6) | high density |
| Keyword(7) | security |
| 1st Author's Name | Shirou Yamamiya |
| 1st Author's Affiliation | Graduate School of Science and Technology, Niigata University() |
| 2nd Author's Name | Hideo Makino |
| 2nd Author's Affiliation | Department of Information Engineering, Faculty of Engineering, Niigata University |
| 3rd Author's Name | Mikihiko Hirono |
| 3rd Author's Affiliation | Department of Electrical and Electronic Engineering, Faculty of Engineering, Niigata University |
| 4th Author's Name | Shinji Watanabe |
| 4th Author's Affiliation | Department of Information Engineering, Faculty of Engineering, Niigata University |
| 5th Author's Name | Ikuo Ishii |
| 5th Author's Affiliation | Graduate School of Science and Technology, Niigata University |
| Date | 1998/5/30 |
| Paper # | |
| Volume (vol) | vol.98 |
| Number (no) | 95 |
| Page | pp.pp.- |
| #Pages | 5 |
| Date of Issue | |