Invention Grant
- Patent Title: Photocathode, electron tube, and method for manufacturing photocathode
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Application No.: US17609519Application Date: 2020-05-12
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Publication No.: US11688592B2Publication Date: 2023-06-27
- Inventor: Terunori Kawai , Yoshitaka Torii , Masami Shibayama , Hiroyuki Watanabe , Shinichi Yamashita
- Applicant: HAMAMATSU PHOTONICS K.K.
- Applicant Address: JP Hamamatsu
- Assignee: HAMAMATSU PHOTONICS K.K.
- Current Assignee: HAMAMATSU PHOTONICS K.K.
- Current Assignee Address: JP Hamamatsu
- Agency: Faegre Drinker Biddle & Reath LLP
- Priority: JP 2019118249 2019.06.26 JP 2019126375 2019.07.05
- International Application: PCT/JP2020/019001 2020.05.12
- International Announcement: WO2020/261786A 2020.12.30
- Date entered country: 2021-11-08
- Main IPC: H01J9/12
- IPC: H01J9/12 ; H01J43/08 ; H01J43/18
Abstract:
A photocathode including a substrate, a photoelectric conversion layer provided on the substrate and generating photoelectrons in response to incidence of light, and an underlayer provided between the substrate and the photoelectric conversion layer and containing beryllium, in which the underlayer has a first underlayer containing a nitride of beryllium.
Public/Granted literature
- US20220230860A1 PHOTOCATHODE, ELECTRON TUBE, AND METHOD FOR MANUFACTURING PHOTOCATHODE Public/Granted day:2022-07-21
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