| SELECT DISTINCT patent.*, YEAR(date) as year FROM patent WHERE (assigned_to = 'NGK Insulators, Ltd.') ORDER BY date ASC, patent, type |
Total of 8 patents found where: Assigned To is 'NGK Insulators, Ltd.';
View a patent by clicking on the patent number. You can sort by any of the columns by clicking on the column name.
| T / S | Patent | Date | Description | Patentee | Category | Assigned To |
| 1972 | ||||||
| U | 3,658,583 | April 25, 1972 | Method for Producing Semi-Conducting Glaze Compositions for Electric Insulators RFI semi-conductive glaze formulas |
OGAWA, Yutaka |
RFI | NGK Insulators, Ltd. |
| 1984 | ||||||
| U | 4,465,900 | August 14, 1984 | High Voltage Glazed Porcelain Insulators Porcelain insulator and glaze designed specifically for DC service |
SEIKE, Shoji MITSUMATSU, Yoshio |
Porcelain | NGK Insulators, Ltd. |
| 1985 | ||||||
| U | 4,559,414 | December 17, 1985 | Electrolytic Corrosion Resistant Insulator Suspension insulator that is corrosion resistant |
KITO, Kuniji WATANABE, Akihiro |
Suspension | NGK Insulators, Ltd. |
| 1987 | ||||||
| U | 4,658,092 | April 14, 1987 | Explosion Preventing Suspension Insulator Suspension insulator using cement to prevent damage to insulator from expansion |
NAKAMURA, Itsushi MORI, Shigeo |
Suspension | NGK Insulators, Ltd. |
| 1988 | ||||||
| U | 4,782,198 | November 1, 1988 | Suspension Insulators Suspension (porcelain) with glazed head for cementing metal cap |
MORIYA, Tsutomu SHINOKUBO, Hiroyuki |
Suspension | NGK Insulators, Ltd. |
| U | 4,782,199 | November 1, 1988 | Insulators Having Improved Steep Wave Front Characteristics Suspension, head treated with special glaze to strengthen cap/cement |
SEIKE, Shoji TOTOKI, Takao MIMA, Toshiyuki |
Suspension | NGK Insulators, Ltd. |
| 1989 | ||||||
| U | 4,814,551 | March 21, 1989 | Anticorrosive Insulator Suspension (anticorrosive), cementing metal cap for DC service (Japan) |
WATANABE, Akihiro MORI, Shigeo |
Suspension | NGK Insulators, Ltd. |
| 1998 | ||||||
| U | 5,796,048 | August 18, 1998 | Insulator having Conductive Surface Coating to Prevent Corona Discharge RFI coating |
SUZUKI, Yoshihiro KUTSUNA, Eiji |
RFI | NGK Insulators, Ltd. |
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