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| 1972 | | Markets the RICOH PPC900, Ricoh's first dry-electrostatic-transfer plain-paper poster. |
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| Jan. 1973 | | Founded manufacturing subsidiary Ricoh Electronics Co., Ltd. (REI) in America (currently Irvine Plant). |
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| Apr. 1973 | | RIFAX 600S, first office facsimile machine, transmits world's first international high-speed facsimile transmission, between Tokyo and New York via satellite communications. | | 
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| Apr. 1973 | | Founded Hasama Tohoku Ricoh Co., Ltd. (name changed to Hasama Ricoh, Inc. in Sept. 1977). |
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| May 1973 | | Founded overseas subsidiary Rapifax Corp. in America for marketing of facsimiles (name changed to Rapicom, Inc. in Mar. 1978). |
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| Jul. 1973 | | Founded Ricoh Optical Industries Co., Ltd. in Iwate Prefecture. |
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| Feb. 1975 | | Launches the RICOPY DT1200, a wet-type plain-paper machine that becomes the world's top-selling copier. |
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| Nov. 1975 | | Is the first company in the office automation industry to win the coveted Deming Prize for excellence in quality control. | | 
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| Jul. 1976 | | RIFAX 600S played active role in Montreal Olympic Game. |
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| Oct. 1976 | | President Mikio Tatebayashi passed away.
Shinichi Miyoshi appointed chairman (until Jun. 27, 1980)
Takeshi Ouye appointed president (until Mar. 31, 1983) | | 
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| Dec. 1976 | | Established Ricoh Credit Co., Ltd. (name changed to Ricoh Lease Co., Ltd. in Apr. 1984). |
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| Mar. 1977 | | Completed construction and operations began at Aoyama Headquarters. |
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| Apr. 1977 | | Introduces the acronym OA, for office automation, at CeBIT in Hannover. | | 
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| 1978 | | Starts overseas sales of copiers under the Ricoh name to augment original equipment manufacturer brands. The Ricoh name is now synonymous with quality and cost performance. |
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| Jul. 1978 | | Founded overseas subsidiary Ricoh Deutschland GmbH in Germany.
Completed construction of Numazu R&D Center. |
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| Dec. 1978 | | Founded Ricoh Business Machines, Ltd. in Hong Kong (name changed to Ricoh Hong Kong Ltd. in Jul. 1987). |
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| May 1979 | | Established overseas subsidiary Ricoh Systems, Inc. in California to carry out R&D (later merged with Ricoh Corporation in Apr. 1987). |
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| Jul. 1979 | | Formed Materials R&D Center at Numazu R&D Center (name changed to Chemical Products R&D Center in Jan. 1990). | | 
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