Production & sale of halogen bulbs for automobiles started
KOITO was depending on imported halogen bulbs, but since recognizing the importance of having own light source, KOITO started to manufacture them in-house. After overcoming initial failures due to difficulties in glass processing, KOITO succeeded in mass-producing the C-6 type in April 1981 which it began selling in November 1982.
North American Lighting, Inc. (NAL) established in Illinois, USA
Swiss franc-denominated, privately-placed, unsecured convertible bonds issued (50 million Swiss francs)
Production & sale of the world's first all-plastic uniquely shaped headlamps started
To reduce the weight and improve designability, KOITO researched ways to manufacture plastic headlamps using technologies adopted in the development of plastic signal lamps. In 1981, KOITO developed a plastic lens as well as a BMC reflector that has high thermal resistance and molding precision. In December 1984, the world's first all-plastic uniquely shaped headlamp made by KOITO was used in the Toyota Soarer.
Unsecured convertible bonds issued for the second time (10 billion yen)
Capital participation in Ta Yih Industrial Co., Ltd. of Taiwan
Projector headlamp commercialized
To reduce the headlamp width and to slant the outer lens to improve vehicles' aerodynamic properties, KOITO developed a projector headlamp, which is a new type of lamp that distributes light with a combination of a composite elliptical reflector and a convex lens. This product started to be used in the Toyota Sera in March 1990.
Fujikawa Tooling Plant opened in Shizuoka, Japan
Four-lamp headlamps for racing developed
At the request of Toyota Motor, KOITO developed four-lamp headlamps for racing; these are brighter than competitors' headlamps and produce an even light distribution. The weight was also reduced by using carbon. In June 1992, these products were used in the Toyota TS-020 and 92C-V that participated in the 24 Hours of Le Mans race.
Supply of freeform surface reflector headlamps started
In response to further lamp design needs, KOITO designed and manufactured a freeform surface reflector necessary for transparent lenses (light distribution is controlled by steps provided on the reflector). This was achieved thanks to high design precision, and the headlamp started to be used in the Mitsubishi Eterna in November 1992.
Production & sale of discharge headlamps (GDHLs) started
A GDHL is a light source that utilizes arc discharge between electrodes and was considered to produce more light, and have long life and high energy efficiency. As the next-generation lamp, KOITO developed the lamp as well as a control circuit called "ballast", which were used in the Nissan Terrano and the Toyota Mark II in 1996.
Ta Yih Industrial Co., Ltd. listed on the Taiwan Stock Exchange
Thai Koito became a subsidiary of KOITO
BVL became a subsidiary of KOITO
NAL became a subsidiary of KOITO
Production & sale of two-lamp GDHLs started
In four-lamp GDHLs, halogen bulbs were used for high beam, causing larger size and mixed colors. To solve these problems, KOITO developed and mass-produced Japan's first two-lamp GDHL, which allows switching between high beam and low beam with a single bulb by using a movable shield for light distribution.
Production & sale of LED signal lamps started
Seeing the effectiveness of using LEDs in signal lamps for their energy- and space-efficiency as well as long life, KOITO developed and successfully commercialized LED signal lamps using a pressure-welded wiring system. These lamps started to be used in the Nissan Skyline in 2001.
Production & sale of the world's first swivel-type Adaptive Front Lighting System (AFS) headlamps started
KOITO developed the world's first swivel-type AFS headlamp that automatically moves the beam direction laterally by using electronic controls. This headlamp started to be used in the Toyota Harrier in February 2003.
Production & sale of discharge bulbs started
KOITO succeeded in in-house manufacturing of discharge bulbs and began mass-producing them efficiently to meet the demand. This made KOITO the only automotive lighting equipment manufacturer that produces both bulbs and ballasts.
Production & sale of the world's first mercury-free discharge headlamps started
Discharge bulbs used to contain trace amounts of mercury. To eliminate this environmentally hazardous substance, KOITO developed and successfully commercialized the world's first mercury-free discharge bulb, as well as a dedicated ballast. They started to be used in the Toyota Porte in July 2004.
Koito Kyushu Limited established in Saga, Japan
Guangzhou Koito Automotive Lamp Co., Ltd. established in China
Certified to TS 16949
Production of all-glass sealed beam (SB) headlamps ended
Production & sale of the world's first LED headlamps started
With white LEDs rapidly becoming more efficient, KOITO developed a headlamp using LEDs as the light source for low beam. Offering improved photometric performance and heat dissipation efficiency, it was installed in the Lexus LS 600h in May 2007, becoming the world's first LED headlamp on the market.
Company name of Fuzhou Tayih Industrial Co., Ltd. changed to Fuzhou Koito Tayih Automotive Lamp Co., Ltd.
PT. Indonesia Koito established in Indonesia
Company name of Koito Industries, Ltd. changed to KI Holdings Co., Ltd.
KOITO developed the Adaptive Driving Beam (ADB), which is a variable high-beam headlamp system that automatically controls photometric patterns according to the position of an oncoming vehicle or a vehicle in front. It started to be used in the Lexus LS in October 2012.
North American Lighting Mexico (NAL Mexico) established in Mexico
Hubei Koito Automotive Lamp Co., Ltd. established in China
(Start of operation is scheduled for July 2016)
Started mass-producing and marketing of the world's first single-LED, bi-functional projector headlamp
KOITO started mass-producing and marketing of the world's first single-LED, bi-functional projector headlamp capable of switching the high beam and low beam on a single LED. In December 2014, it was delivered for the Toyota Prius α.
KOITO's 100th anniversary