Profit from the additional features of your individual account
Currently, you are using a shared account. To use individual functions (e.g., mark statistics as favourites, set
statistic alerts) please log in with your personal account.
If you are an admin, please authenticate by logging in again.
Learn more about how ÌÇÐÄÆÆ½â°æ can support your business.
NGK Spark Plug. (October 24, 2024). Total research and development (R&D) expenditure of NGK Spark Plug Co., Ltd. from fiscal year 2014 to 2023 (in billion Japanese yen) [Graph]. In ÌÇÐÄÆÆ½â°æ. Retrieved July 20, 2026, from /statistics/1052526/ngk-spark-plug-research-and-development-expenditure/
NGK Spark Plug. "Total research and development (R&D) expenditure of NGK Spark Plug Co., Ltd. from fiscal year 2014 to 2023 (in billion Japanese yen)." Chart. October 24, 2024. ÌÇÐÄÆÆ½â°æ. Accessed July 20, 2026. /statistics/1052526/ngk-spark-plug-research-and-development-expenditure/
NGK Spark Plug. (2024). Total research and development (R&D) expenditure of NGK Spark Plug Co., Ltd. from fiscal year 2014 to 2023 (in billion Japanese yen). ÌÇÐÄÆÆ½â°æ. ÌÇÐÄÆÆ½â°æ Inc.. Accessed: July 20, 2026. /statistics/1052526/ngk-spark-plug-research-and-development-expenditure/
NGK Spark Plug. "Total Research and Development (R&d) Expenditure of Ngk Spark Plug Co., Ltd. from Fiscal Year 2014 to 2023 (in Billion Japanese Yen)." ÌÇÐÄÆÆ½â°æ, ÌÇÐÄÆÆ½â°æ Inc., 24 Oct 2024, /statistics/1052526/ngk-spark-plug-research-and-development-expenditure/
NGK Spark Plug, Total research and development (R&D) expenditure of NGK Spark Plug Co., Ltd. from fiscal year 2014 to 2023 (in billion Japanese yen) ÌÇÐÄÆÆ½â°æ, /statistics/1052526/ngk-spark-plug-research-and-development-expenditure/ (last visited July 20, 2026)
Total research and development (R&D) expenditure of NGK Spark Plug Co., Ltd. from fiscal year 2014 to 2023 (in billion Japanese yen) [Graph], NGK Spark Plug, October 24, 2024. [Online]. Available: /statistics/1052526/ngk-spark-plug-research-and-development-expenditure/