uses javascript . please enable javascript and update the page in order to view our website . en menu about us products research anddevelopment news investor relations csr specialcontents about us message from president philosophy and strategy corporate message our brands corporate profile business descriptions global networks a history of ngk spark plug co. ltd. corporate brochure products spark plugs glow plugs sensors semiconductor packages cutting tools medical products fine ceramics product brochure research anddevelopment our r & d activities research articles and conference presentations news 2016 2015 2014 2013 2012 2011 2010 2009 2008 2007 2006 2005 and before investor relations management policies ir library financial and business results information stocks and bonds ir events ir news faq disclaimer how to use this ir site ir site map csr president s message for stakeholders our csr process for defining materiality special feature management with our customers with our shareholders and investors with our suppliers with our employees with local communities and international society for environmental protection csr initiatives as a group diversity csr report third party review external evaluation of our csr initiatives specialcontents since 1936 our stories numbers tell ngk spark plug more about ngk spark plug go for it nittoku s challenge english deutsch espa ol portugu s corporate message news oct 03 2016 topics updated executive officers organization and global networks japan oct 03 2016 ir notice concerning the status of repurchase of own shares ir news since 1936 we created japan s first spark plugs.the history of ngk spark plug co. ltd. began with this unprecedented challenge . since 1936 our stories our drives are unique and world class technologies with tremendous passions.here are stories which are filled with passions and challenges . our stories learn about ngk spark plug co. ltd. at a glance . here we use actual numbers to introduce the ngk spark plug s group which will continue to grow as it contributes to our lives society and the environment . numbers tell ngk spark plug more aboutngk spark plug we lead with the top share of the world market in spark plugs which fully utilize the properties of ceramics to make the impossible possible.our products fire the passion of each and every one around the world . more about ngk spark plug about us message from president philosophy and strategy corporate message our brands corporate profile business descriptions global networks a history of ngk spark plug co. ltd. corporate brochure products spark plugs glow plugs sensors semiconductor packages cutting tools medical products fine ceramics product brochure research & development our r & d activities research articles and conference presentations csr president s message for stakeholders our csr process for defining materiality special features management with our customers with our shareholders and investors with our suppliers with our employees with local communities and international society for environmental protection csr initiatives as a group diversity csr report third party review external evaluation of our csr initiatives investor relations management policies ir library financial and business results information stocks and bonds ir events ir news news contact us special contents terms of use privacy policy site map ngk spark plug s group global site 2016 ngk spark plug co. ltd. .