| 2021 | P/S | Plant grafting device for vegetable seedlings. | 
				    			
				    				
				    					|  | P/S | Plant grafting device for vegetable seedlings. | 
				    			
				    				
				    					|  | P/S | Cutting and grafting device that is a component part of agricultural seed planting machines | 
				    			
				    				
				    					| 2020 | Invention | Irrigation device and cell plug used for same. An irrigation device includes: a cell plug that in... | 
				    			
				    				
				    					|  | Invention | Irrigation device and cell plug used for same. An irrigation device comprising: a cell plug with ... | 
				    			
				    				
				    					| 2017 | Invention | Device for raising seedlings, and supporting unit and cell plugs to be used in device for raising... | 
				    			
				    				
				    					| 2015 | Invention | Seedling-cutting apparatus, and grafting apparatus having seedling-cutting apparatus. A seedling-... | 
				    			
				    				
				    					|  | Invention | Seedling-cutting apparatus, and grafting apparatus having seedling-cutting apparatus. This seedli... |