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Patent applications and USPTO patent grants for Hagi; Kazuo.The latest application filed is for "electronic business transaction system including server device, client device and connecting terminal used therein".
Patent | Date |
---|---|
Data transfer method in function expansion system Grant 6,681,260 - Hagi January 20, 2 | 2004-01-20 |
Electronic business transaction system including server device, client device and connecting terminal used therein App 20020049605 - Hagi, Kazuo | 2002-04-25 |
Protection switching system having impedance matching circuits Grant 5,638,358 - Hagi June 10, 1 | 1997-06-10 |
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