| Patent No. | Country | Name of Patent |
| (1) 1712679 | Japan | 13A propane-air gas manufacturing plant |
| (2) 1729783 | Japan | Method for filling LP Gas |
| (3) 1729796 | Japan | Plant for the inspection of storage-container for LP Gas |
| (4) 1823371 | Japan | Method of cascaded supply of LP Gas under low pressure |
| (5) 1904572 | Japan | 13A propane-air gas manufacturing plant |
| (6) 1962547 | Japan | Air-heated/hot-water dual type propane-air gas manufacturing plant |
| (7) 1962548 | Japan | Air-heated/hot-water dual type propane-air gas manufacturing plant |
| (8) 2787352 | Japan | Process and transfer-method of tank tracks for LP Gas |
| (9) 2877535 | Japan | Shifting systems to back up air-heated type vaporizer |
| (10) 2941989 | Japan | Systems to safely supply in specific gas generator |
| (11) 3370703 | Japan | Air-heated/steam dual type vaporizers |
| (12) 3526507 | Japan | Filling methods of LP-Gas through three-way rotary valve |
| (13) 3578693 | Japan | Gas manufacturing plant built in air-heated and hot water heated dual type vaporizer |
| (14) 3589788 | Japan | Air-heated/steam dual type vaporizers |
| (15) 3947423 | Japan | Bulk lorry for highly-speed loading |
| (16) 4477419 | Japan | Air-heated/hot-water dual type vaporizer and gas manufacturing plant built in air-heated/hot-water dual type vaporizer(s) |
| (17) US6283068B1 | U.S.A. | AIR-HEATED/HOT-WATER TYPE VAPORIZER AND AIR-HEATED HOT-WATER TYPE GAS PRODUCING PLANT |
| (18) US6889728B2 | U.S.A. | HIGH-SPEED BULK FILLING TANK TRUCK |
| (19) US7665639B2 | U.S.A. | TANK TRUCK DERIVERING LIQUEFIED GAS |
| (20) 24873 | Korea | Plant for manufacturing propane-air gas |
| (21) 1092911 | EU | AIR-HEATED/HOT-WATER TYPE VAPORIZER AND AIR-HEATED/HOT-WATER TYPE GAS PRODUCING PLANT |
| (22) 1408275 | EU | HIGH-SPEED FILLING BULK LORRY |
| (23) 2170218 | UK | Plant for manufacturing propane-air gas |
| (24) 8990629-1 | Singapore | Plant for manufacturing propane-air gas |
| (25) 53583 | Taiwan | Plant for manufacturing propane-air gas |
| (26) 1037226 | Hong Kong | AIR-HEATED/HOT-WATER TPPE VAPORIZER AND AIR-HEATED/HOT-WATER TYPE GAS PRODUCING PLANT |
| (Registration of a Design) |
|---|
| (1) No.984230 | Japan | Three-way rotary valves for filling of LP Gas |
