1929 OHTO Co.,Ltd. established in Tokyo and begin to manufacture high quality dyes and ink. 1949 Manufactured the world's first pencil-shaped ballpoint pen with chrome ball.
1960 Developed a nonsmudging ballpoint pen ink with unprecedented resistance to fading.
1963 Manufactured the ballpoint pens with tugsten carbide balls and making use of polymide resin in cartridge-style,water-based ink ballpoint pens featuring the Delrin Tip(Du Pont Co.).
1964 Developed convenient pen cores that permit the user to see the ink level.
1977 Introduced the rubber grippered pen,first in the world.
1981 Developed a technology of using ceramic materials to the writing ball of water-based ink roller pens,origin of CERAMIC ROLLER PEN.
1990 CB-10F model Ceramic Roller Pen is selected for use at the 1990 Economic Summit of Industrialized Nations.
1991 Developed pigmented ink roller pens and stainless steel-tipped cartridges.
2000 Developed strong needle tip, first in the world.
