The first patent for a refillable pencil with lead-propelling mechanism was issued to Sampson Mordan and John Isaac Hawkins in Britain in 1822.
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The mechanical pencil became successful in Japan with some improvements in 1915 by Tokuji Hayakawa, a metal worker who had just finished his apprenticeship.
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Charles Rood Keeran (16 April 1883 - June 9, 1948) was an Illinois inventor and businessman and patent holder and pioneer of the mechanical pencil.
After the Second World War the company merged with Sampson Mordan Ltd whose founder had patented the first mechanical pencil in 1822.