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| ◆1925 |  |
Launched the pure silver, arabesque, fountain pen | ||
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| ◆1946 |  |
A-type of Fountain pen 'S1' was great hit. | ||
| ◆1947 |  |
Platinum fountain pen co, changed its name to ' Platinum Industry Co,'. Began export of fountain pen. |
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| ◆1952 |  |
Got the 1st authorization on export products by GHQ. | ||
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| ◆1953 |  |
Succeeded in putting an iridium on the pen point of the stainless steel. | ||
| ◆1956 |  |
Produced Platinum Fountain Pen Spair Set. | ||
| ◆1963 | 
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Employed new 200 staffs. | ||
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first president Shunichi Nakata was elected a member of theMetropolitan Assembly. |
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 Constructed
the factory in Colombo, Ceylon. |
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| ◆1964 |  Launched ' Poket' series, PK-1000, PKB-2000(18K), Platinum 18'Flower PSG-2000' PK-1500 (Poket type) Exported products 431 tiems to 83 countries. |
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 Launched Soft Pen. |
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| ◆1965 |  Launched Knock Type Fountain Pen. |
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| ◆1966 |  Published the book what was written about history of Platinumfountain Pen Co.,ltd.  Opened the Showroom at Ueno-Hirokoji. |
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 Sponsored famous TV programs- Johnny's Seven Show,Platinum Golden Show. |
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| ◆1967 |  Launched the new fountain pen with Platinum nib (Body and Cap;Silverwith Rhodium coating), which was the first fountain pen in the world. |
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 Launched the new fountain pen with sheep leather' Platinum Sheep'for 5,000 Yen. |
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| ◆1968 |  Launched the new fountain pens for women with flower pattern 'Poket'.
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 Constructed the second factory next to the Kamata factory.  A founder Shunichi Nakata died at 66 years old.  Made the Commercail Song of Platinum Pen Co.,- My Platinum ( Lyrics/ Music: Atushi Hashimoto, Kouiti Sugiyama)  TV program- Platinum Golden Show-was memorialized 160 times.  Announced the New Trade Mark 'P'.
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| ◆1969 |  Launched the new fountain pen ' Platinum sheep' for 10,000Yen.  The TV commercial of Platinum Pen Co., was televised,famous actors and actresses (Sayuri Yoshinaga, Souhachi Yamaoka, Hanae Mori etc) were appeared.  Launched the new cartridge ink color 'Royal Blue', the clasical fountain penPB-5000 (18K).  Launched the new fountain pen ' Higo zo-gan' for 8,000 yen,'PT-3000 (18K,7 colors) for 3,000 yen. |
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 Launched the new fountain pen 'PP-24000( Platinum nib)'' Poket series' for 2,000 -6,000 yen, 'PK22-3000'. |
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 Launched the new fountain pen ' Silver 18K' ' PK23-3000 (23K nib)',the new desk pen for 4,000 yen. |
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| ◆1970 |  Finished TV programs.  Launched the new type of fountain pen 'Platinum Capsule' for 5,000 yen 'Platinum Fashion Pen' for 3,000 yen. |
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◆1971 ◆1972 |
 Constructed the new office at Ueno. Launched the new fountain pen ' Platinum White' for 2,000 yen'Platinum Jewel' for 2,000 yen,' Platinum Black' for 1,00yen.  Launched the grained fountain pen ' Platinum Cherry' for 3,000 yen.
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◆1973 |
 Launched the new fountain pen ' Amazonas ( Papi papi)' for 8,000 yen,'PKT-3000' ' Sheep series'.） |
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 The TV program-Platinum Golden Show re-started. |
◆1974 ◆1975 |
 Launched the new fountain pen ' PPD-12000' ' Sheep-Japanesetraditional craft-Yuzen series' for 7,000 yen ' Platinum Angle' for 1,500 yen.  Launched the new fountain pen ' PJ-10000- Japnaese traditionalcraft-Tsuishu' for 10,000 yen 'PSL-5000'.） |
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 Launched the new fountain pen ' PGS-25000' ' PGS-15000' ' PJ-6000'' PSB-6000'' PSR-25000A(18KWG)''PAR-5000'. |
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| ◆1976 |  Launched the new fountain pen 'Riviere PGR-184000(18K)'' PSR-25000A(18KWG)'.5,000円  Started the Giants(Japanese Base ball team) campaign.
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| ◆1977 |  Launched the new fountain pen ' PSN-15000( Crocodile)' ' PSN-10000A (Lizard)''PSN-10000B(Snake)'' PSN-10000C(Shark).  Launched the new fountain pen with a chain' PKW-5000' ' PSJ-16000(18KWG)'' .
 Launched the new mechanical pencil 0.9mm for writing shorthand ' Press Man' for 200 yen. |
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| ◆1978 |  Launched the initial multi function ' W Action' for 500 yen.
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| ◆1979 |
 Launched the ideal fountain pen '3776 series' for 10,000 yen.
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 Began import of writing instruments 'Elise' from Germany.  Launched the new fountain pen (9 items) for 3,000-6,000 yen,  the new ball point pen (9 items) for 6,000-20,000 yen. Launched the new ball point pen ' Melody harmony' for 3.980, the new mechanical pencil ' W knock' for 300 yen' MP-200' for 200 yen.  Made the contract with PLAY BOY Enterprize company. |
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 Launched the new fountain pen ' Berage' for 3,000 yen.  'PMB-5000' won the Good Design Award. |
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| ◆1981 |  Launched the new fountain pen ' PFB-5000'' PFB-7000'.  Launched the new fountain pen with a watch 'Writing Watch' for 5,600 yen.
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