ALEXANDRIA, Va., June 5 -- United States Patent no. 12,274,504, issued on April 15, was assigned to NIDEK Co. LTD. (Aichi, Japan).
"Non-contact ultrasonic ophthalmotonometer" was invented by Tetsuyuki Miwa (Aichi, Japan), Kazunari Shimizu (Aichi, Japan), Shirohisa Kobayashi (Aichi, Japan), Tsutomu Uemura (Aichi, Japan) and Kenji Nakamura (Aichi, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A non-contact ultrasonic tonometer for measuring the eye pressure of an examinee's eye by use of ultrasound includes a Langevin transducer. The Langevin transducer applies ultrasound to the examinee's eye to measure the eye pressure of the examinee's eye. Further, A non-contact ultrasonic tonometer for measuring th...