Reduction of Greenhouse Gas Emissions

Basic Approach

KOITO places the prevention of global warming and the reduction of CO2 emissions as one of the most important environmental conservation activities.
 To contribute to the improvement of fuel efficiency in automobiles and reduction of CO2 emissions, KOITO is promoting power conservation, size reduction, and weight reduction from the product development and design phase. KOITO has set quantitative reduction goals for midterm priority activities in the production and logistics phase to promote energy conservation and to reduce CO2 emissions.

Efforts through Products

LED Headlamps
KOITO started using LEDs as the light source for headlamps before other companies to improve the fuel efficiency of automobiles and to reduce CO2 emissions by reducing power consumption of the lamps. The LED headlamps consume about 40% less electricity than discharge headlamps, which reduces the battery load.
 KOITO started the mass production of LED headlamps with white LEDs in May 2007 for the first time in the world and has improved the performance of the headlamps. The use of the headlamps has expanded to various vehicles, from large-size vehicles, compact vehicles, mini vehicles, and to motorcycles. About 40% of LED headlamps was globally adopted out of the headlamps produced by the KOITO Group in FY 2019 and it is expected to widespread further.
 KOITO is now developing energy efficient lamps by improving the performance of the white LED lamps while reducing the size and weight.
LED Rear Combination Lamps
KOITO has conventionally used incandescent light bulbs to rear combination lamps. However, as LED realizes smaller, lighter, more energy efficient, and longer life lamps, and it contributes to the improvement of the fuel efficiency and CO2 emissions reductions of vehicles, LED rear combination lamps are also being adopted in various vehicles as in the case of LED headlamps.
Auto-leveling System with Built-in Acceleration Sensors
The auto-leveling system is designed to keep the irradiation angle of the headlamp steady along with the change in vehicle position. When the conventional vehicle height sensor is replaced by an acceleration sensor that is integrated with the control circuit, the use of the vehicle height sensor and wire harness becomes unnecessary, which contributes to the weight reduction and the improvement of fuel efficiency of a vehicle.

Efforts in the Production Process

KOITO is working to improve energy efficiency and production efficiency in the production phase to reduce the amount of CO2 emissions. KOITO is reducing CO2 emissions by improving work methods, improving and updating facilities, such as updating to higher-efficiency transformers and gas heat pump (GHP) air conditioners, installing automatic power shutdown systems to kick in when facilities are not in use, and replacing lamps with LED lamps.
 Departments indirectly related to production, such as offices, are also evaluating power consumption and optimizing power use by changing the temperature setting of air conditioners, managing the length of air conditioner operation, and conducting power conservation patrols.
 KOITO has set a goal of reducing CO2 emissions (CO2 emissions intensity) per production monetary amount (million yen) by 13% by FY 2021 from the level of FY 2016 in the five-year plan from FY 2017 to FY 2021.
 Factories in Japan were streamlined in FY 2016 by integrating production lines and conducting improvement work that resulted in improved productivity and energy efficiency. With this effort, the intensity of CO2 emissions in FY 2020 decreased by △12.6% from FY 2016, which was greater achievement than the initially intended △11% reduction.

Efforts in Logistics

The logistics of KOITO are mainly conducted by freight trucks. A domestic subsidiary, Koito Transport, is mainly carrying out the logistics operations.
 Koito Transport acquired the Green Business Certificate in February 2004. With KOITO, Koito Transport aims to realize environmentally friendly transport business operations by reducing environmental impacts focusing on reducing the energy consumption of freight trucks, CO2 emissions, and waste emitted through the logistics process.
 The amount of CO2 emissions from the entire logistics operation of KOITO was 14,000 tons in FY 2020, which was larger than FY 2019 due to the increase in transportation. Yet, energy per unit* was 0.148 kl per billion yen, which was 13% lower than FY 2016 due to continuous improvement efforts.

Koito Transport won the Ministry of the Environment Award in FY 2015 and the Minister of Land, Infrastructure and Transport Award for business sites with excellent environmental conservation performance in FY 2018, which acknowledged Koito Transport’s continuous team efforts to reduce CO2 emissions, such as the improvement in fuel efficiency, through the disciplined efforts of truck drivers and reduction of vehicle weights. Furthermore, in November 2018, Koito Transport received an award from Shizuoka Branch of Land Transportation Safety & Health Association, in recognition of the continuous effort of their long-standing “zero” occupational accident.
 We will continue to pursue eco-driving along with safe driving.