US Patent Issued to HAMAMATSU PHOTONICS on March 17 for "Method for producing alkali vapor cell and alkali vapor cell" (Japanese Inventor)

ALEXANDRIA, Va., March 17 -- United States Patent no. 12,578,687, issued on March 17, was assigned to HAMAMATSU PHOTONICS K.K. (Hamamatsu, Japan).

"Method for producing alkali vapor cell and alkali vapor cell" was invented by Masaki Yamada (Hamamatsu, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method for producing an alkali vapor cell includes a step of preparing a first member and a second member; a step of forming a first metal film on a surface of the first member; a step of forming a second metal film on a surface of the second member; a step of disposing a simple substance of the alkali metal; and a step of directly bonding the first metal film and the second metal film to each other in a no...