JPH03126673U - - Google Patents
Info
- Publication number
- JPH03126673U JPH03126673U JP3600690U JP3600690U JPH03126673U JP H03126673 U JPH03126673 U JP H03126673U JP 3600690 U JP3600690 U JP 3600690U JP 3600690 U JP3600690 U JP 3600690U JP H03126673 U JPH03126673 U JP H03126673U
- Authority
- JP
- Japan
- Prior art keywords
- photochromic
- ultraviolet rays
- irradiated
- changes
- utility
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 229920000642 polymer Polymers 0.000 claims 1
Landscapes
- Credit Cards Or The Like (AREA)
- Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990036006U JP2532318Y2 (ja) | 1990-04-03 | 1990-04-03 | フォトクロミックカード |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990036006U JP2532318Y2 (ja) | 1990-04-03 | 1990-04-03 | フォトクロミックカード |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03126673U true JPH03126673U (nl) | 1991-12-20 |
| JP2532318Y2 JP2532318Y2 (ja) | 1997-04-16 |
Family
ID=31541859
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1990036006U Expired - Lifetime JP2532318Y2 (ja) | 1990-04-03 | 1990-04-03 | フォトクロミックカード |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2532318Y2 (nl) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62227794A (ja) * | 1986-03-31 | 1987-10-06 | 東洋インキ製造株式会社 | 改さん防止物 |
| JPS6313021A (ja) * | 1986-07-04 | 1988-01-20 | Ricoh Co Ltd | 表示方法 |
| JPS6438743A (en) * | 1987-08-04 | 1989-02-09 | Seiko Epson Corp | Photochromic paper |
-
1990
- 1990-04-03 JP JP1990036006U patent/JP2532318Y2/ja not_active Expired - Lifetime
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62227794A (ja) * | 1986-03-31 | 1987-10-06 | 東洋インキ製造株式会社 | 改さん防止物 |
| JPS6313021A (ja) * | 1986-07-04 | 1988-01-20 | Ricoh Co Ltd | 表示方法 |
| JPS6438743A (en) * | 1987-08-04 | 1989-02-09 | Seiko Epson Corp | Photochromic paper |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2532318Y2 (ja) | 1997-04-16 |