Holds many patents on resonators, units, oscillators and electronic devices, mainly in Japan and the United States.
The patents registered by the application of Piedek Technical Laboratory are as follows.
Japanese patents
| 3,749,917 | 4,026,074 | 4,411,492 | 4,411,496 | 4,556,201 |
| 4,650,753 | 4,697,190 | 4,822,189 | 4,836,016 | 4,862,639 |
| 4,862,856 | 4,868,335 | 5,050,160 | 5,066,653 | 5,103,632 |
| 5,103,638 | 5,130,502 | 5,135,565 | 5,135,566 | 5,266,437 |
| 5,272,121 | 5,272,167 | 5,401,653 | 5,428,068 | 5,515,054 |
| 5,515,055 | 5,526,312 | 5,531,319 | 5,651,822 | 5,756,983 |
| 6,131,445 | 6,263,719 | 6,318,418 | 6,409,194 | 6,454,894 |
US patents
| 6,791,243 | 6,897,743 | 6,898,832 | 6,903,618 | 6,911,765 |
| 6,959,472 | 7,071,794 | 7,170,218 | 7,193,354 | 7,342,352 |
| 7,412,764 | 7,441,316 | 7,528,682 | 7,536,768 | 7,564,326 |
| 7,723,904 | 7,768,179 | 7,779,530 | 7,845,063 | 7,944,131 |
| 8,091,189 | 8,096,042 | 8,122,587 | 8,127,426 | 8,127,427 |
| 8,217,736 | 8,240,023 | 8,358,052 | 8,358,053 | 8,375,559 |
| 8,572,824 | 8,614,537 | 8,749,124 | 8,766,516 | 8,806,738 |
| 8,866,567 | 9,077,308 | 9,203,135 | 9,209,381 | 9,431,957 |
| 9,553,560 | 10,199,556 | 10,284,143 | 10,594,259 | 11,005,420 |
| RE44,423 | RE45,582 | RE45,829 |
