Historical Timeline of Our Products
				The Trajectory of NGK Product Advancement
				
				
				
				
					
						
							
								- 2013
- 
									
										- Zirconium-copper wire is developed.
 
- 2015
- 
									
										- Zinc rechargeable battery is developed.
- Containerized NAS battery is developed.
 
- 2018
- 
									
										- Microlens for ultraviolet LEDs is commercialized.
- Chip-type ceramic rechargeable battery EnerCera series is developed.
 
Note:
							
								- Products marked with a dot (●) are no longer manufactured or sold (including those transferred to another group company).
 
					 
					
						
							- 
								
									 
- Zinc rechargeable battery
 
- 
								
									 
- Chip-type ceramic rechargeable battery EnerCera series