公开(公告)号：US3513349A

公开(公告)日：1970-05-19

申请号：US3513349D

申请日：1966-12-28

Applicant: MATSUSHITA ELECTRONICS CORP

Inventor： MIZUNO HIDEO ,  AKUTSU HIDEZO ,  MORIGUCHI EIZIRO ,  YAMASHITA KATSUYUKI ,  KAMIYA SHIGERU ,  IWATA KOSHI

IPC: H01J61/067 ,  H01J1/14

CPC classification number: H01J61/067

公开(公告)号：DE1589227A1

公开(公告)日：1970-03-05

申请号：DE1589227

申请日：1967-01-05

Applicant: MATSUSHITA ELECTRONICS CORP

Inventor： MIZUNO HIDEO ,  YAMASHITA KATSUYUKI ,  IWATA KOSHI ,  AKUTSU HIDEZO SUITA ,  MORIGUCHI EIZIRO ,  KAMIYA SHIGERU

IPC: H01J61/067 ,  H01J1/14

Abstract: 1,167,157. Electrode materials. MATSUSHITA ELECTRONICS CORP. 19 Dec., 1966 [8 Jan., 1966], No. 56632/66. Heading H1D. In an electric discharge device, e.g. a fluorescent lamp having tungsten wire coil electrodes, the electrodes are coated with emissive materials comprising a mixture of barium, strontium and calcium oxides, iron boride in an amount of 0.05% to 10% by weight thereof, and at least one powdered high melting point reducing metal from the group zirconium, hafnium, niobium and tantalum in an amount of 1% to 8% by weight thereof. Preferably the iron boride, which may be of the FeB or Fe 2 B type, is present in an amount of 0.5% to 3% by weight; the reducing metal powders prevent oxidation of the iron boride during processing. A number of examples are given. The coating is stated to reduce to less than 15 dB. the radio noise of a fluorescent lamp during operation.

公开(公告)号：CA801190A

公开(公告)日：1968-12-10

申请号：CA801190D

Applicant: MATSUSHITA ELECTRONICS CORP

Inventor： MIZUNO HIDEO ,  AKUTSU HIDEZO ,  YAMASHITA KATSUYUKI ,  IWATA KOSHI ,  MORIGUCHI EIZIRO ,  KAMIYA SHIGERU