Invention Grant
- Patent Title: Cathode assembly incorporating a black layer formed from particles having a specified average particle size
- Patent Title (中): 包含由具有特定平均粒径的颗粒形成的黑色层的阴极组件
-
Application No.: US214280Application Date: 1994-03-17
-
Publication No.: US5543682APublication Date: 1996-08-06
- Inventor: Akihito Hara , Toshiharu Higuchi , Toru Yakabe , Shigeo Kanda , Eiji Yamamoto
- Applicant: Akihito Hara , Toshiharu Higuchi , Toru Yakabe , Shigeo Kanda , Eiji Yamamoto
- Applicant Address: JPX Kawasaki
- Assignee: Kabushiki Kaisha Toshiba
- Current Assignee: Kabushiki Kaisha Toshiba
- Current Assignee Address: JPX Kawasaki
- Priority: JPX5-057280 19930317; JPX5-145980 19930617; JPX5-306937 19931208; JPX5-306938 19931208
- Main IPC: H01J1/26
- IPC: H01J1/26 ; H01J9/04 ; H01J29/02
Abstract:
A black coating having a uniform thickness is formed, on the inner surface of the cathode sleeve, as a sintered layer obtained by mixing tungsten having an average particle diameter in a range of 0.5 .mu.m (inclusive) to 2 .mu.m (inclusive) with alumina having an average particle diameter in a range of 0.1 .mu.m (inclusive) to 1 .mu.m (exclusive) at a weight ratio of the tungsten to the alumina in a range of (90:10) to (65:35).
Public/Granted literature
- USD305046S Landing ramp marble race toy Public/Granted day:1989-12-12
Information query
