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Patent applications and USPTO patent grants for Okamoto; Tetsukazu.The latest application filed is for "composite material for positive temperature coefficient thermistor, ceramic for positive temperature coefficient thermistor and method for manufacturing ceramics for positive temperature coefficient thermistor".
Patent | Date |
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Semiconductor ceramic and semiconductor ceramic device Grant 6,432,558 - Nabika , et al. August 13, 2 | 2002-08-13 |
Semiconductor ceramic and device using the same Grant 6,362,521 - Nabika , et al. March 26, 2 | 2002-03-26 |
Composite material for positive temperature coefficient thermistor, ceramic for positive temperature coefficient thermistor and method for manufacturing ceramics for positive temperature coefficient thermistor Grant 6,346,496 - Nabika , et al. February 12, 2 | 2002-02-12 |
Composite Material For Positive Temperature Coefficient Thermistor, Ceramic For Positive Temperature Coefficient Thermistor And Method For Manufacturing Ceramics For Positive Temperature Coefficient Thermistor App 20010008867 - NABIKA, YASUHIRO ;   et al. | 2001-07-19 |
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