Number | Date | Country | Kind |
---|---|---|---|
58-187071 | Oct 1983 | JPX |
Number | Name | Date | Kind |
---|---|---|---|
3919620 | McMurray et al. | Nov 1975 | |
4063143 | Forstbauer | Dec 1977 | |
4348734 | Dougherty | Sep 1982 | |
4445167 | Okado | Apr 1984 | |
4502106 | Glennon | Feb 1985 | |
4546422 | Okado | Oct 1985 |
Entry |
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1983 Journal Article of Akamatsu et al, "Ultrasonic-Frequency-PWM Inverter Using Capable Bipolar Transistor and a New PWM Control Method". |