stock listing the second section of tokyo stock exchange representative takashi kakegawa president employees consolidated 2 087 as of end of march 2011 annual sales consolidated 51 703 million yen as of end of march 2011 groupmajor clients japan railway group companies the other railway companies tokyo metro co. ltd. kawasaki heavy industries ltd. hitachi ltd. the kinki sharyo co. ltd. tokyu car corporation nippon sharyo ltd. japan airlines corporation all nippon airways co. ltd. singapore airlines ltd. continental airlines inc. virgin atlantic airways ltd. ministry of land infrastracture transport and tourism municipal governments east nippon expressway company limited central nippon expressway company limited west nippon expressway company limited metropolitan expressway company limited hanshin expressway company limited ministry of defence national police agency metropolitan police department municipal police departments japan international cooperation agency ministry of agriculture forestry and fisheries ministry of education culture sports science and technology universities and colleges toto ltd. koito manufacturing co. ltd. groupmain products rail car equipment aircraft passenger seats lighting equipment information equipment traffic system equipment environmental control system equipment sanitary equipment head office 100 maeda cho totsuka ku yokohama kanagawa history in 1915 genrokuro koito founded koito genrokuro shoten in kyobashi tokyo and started to supply fresnel lenses for railway signals . in 1936 the company was reorganized as koito manufacturing co. ltd. who manufactured and sold lightings electrical equipments for railway cars vessels and airports etc. from 1945 to around 1955 the company successfully developed reclining seats for railway cars and airplanes delivered night game lighting equipments for korakuen stadium started mass production of sealed beam lamps for automobiles and expanded its business to area of traffic signal equipments . in 1947 naigai shoji co. ltd. was established . the trade name was changed to koito shoji co. ltd. and then to koito industries limited in 1957 . in 1967 the company was divided its business into two separate companies ; one is the shizuoka division which had primarily produced car lighting equipment was succeeded to koito manufacturing co. ltd. and the other is yokohama division which had mainly produced railway car equipments and lightings electrical equipments was succeeded to koito industries limited . in 1988 the company was listed on the second section of tokyo stock exchange . in 2011 the company newly established koito electric industries ltd. and the newly build company succeeded all the business excluding aviation seat business from the company . concurrently the company changed its trade name to ki holdings . ltd. contact us international operation division tel 81 45 826 6850 fax 81 45 826 6823 ki holdings co. ltd. head office factory koito electric industries ltd. head office fuji nagaizumi factory all rights reserved copyright c 2011 ki holdings group