| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Japan | 11 |
| # | Industry | |
|---|---|---|
| #1 | Audio-visual technology | |
| #2 | Civil engineering |
| # | Technology | |
|---|---|---|
| #1 | Advertising | |
| #2 | Platform constructions |
| # | Name | Total Patents |
|---|---|---|
| #1 | Akasaka Katsutaro | 11 |
| #2 | Koike Yataro | 10 |
| Publication | Filing date | Title |
|---|---|---|
| JP2004057802A | Health promotion sheet and its production method | |
| JP2000047615A | Display plate | |
| JPH11184408A | Display device | |
| JPH11167360A | Display device | |
| JPH09302629A | Indicator | |
| JPH09305137A | Road surface indicator | |
| JPH09297527A | Braille equipment | |
| JPH07207629A | Device for drawing division line on roadface | |
| JPH06287917A | Boundary mark pole for snow-buried road or the like | |
| JPH06228470A | Fluorescent powder and its production | |
| JPH06228321A | Fluorescent bead and its production |