| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Japan | 21 |
| # | Industry | |
|---|---|---|
| #1 | Environmental technology |
| # | Name | Total Patents |
|---|---|---|
| #1 | Tsuchiya Minoru | 21 |
| #2 | Ishikawa Susumu | 1 |
| #3 | Baba Ikuko | 1 |
| #4 | Minakata Mamoru | 1 |
| Publication | Filing date | Title |
|---|---|---|
| JP2001062208A | Moving bed type filter device using floating filter media | |
| JP2001045914A | Water surface dust collection/conveyance device | |
| JP2001000806A | Circular-ring metallic-membrane filter | |
| JP2000167578A | Contact oxidation treatment bed of sedimentation basin | |
| JP2000157833A | Gas-liquid contact reaction tower | |
| JP2000144685A | Porous concrete block | |
| JP2000139995A | Continuous water cooler | |
| JP2000117003A | Upward and downward counter-current concentrator | |
| JP2000117012A | Metallic membrane filter device | |
| JPH11300111A | Filter media transferring method for filtering device, and biological membrane filtering device using the transferring method | |
| JPH11239703A | Slow dirt-removing screen device | |
| JPH11197410A | Fixed bed filter by moving bed cleaning | |
| JPH11188193A | Washing machine with drier | |
| JPH11165003A | Method of transferring filter medium for filter | |
| JPH11156384A | Moving bed type biological membrane filter apparatus | |
| JPH11127835A | Cigarette filter | |
| JPH11101353A | Aqueous solution inflow pipe in water tank | |
| JPH1177086A | Vertical oxidation ditch | |
| JPH1157320A | Filter media transporting method of filter device using floating filter media | |
| JPH11679A | Traveling biological filter device |