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NIPPON DENKI SYLVANIA KK

Overview
  • Total Patents
    119
About

NIPPON DENKI SYLVANIA KK has a total of 119 patent applications. Its first patent ever was published in 1974. It filed its patents most often in Japan. Its main competitors in its focus markets electrical machinery and energy, machines and audio-visual technology are SILICA SYNDICATE LTD, NAT VIDEO CORP and ENGLISH ELECTRIC VALVE CO LTD.

Patent filings in countries

World map showing NIPPON DENKI SYLVANIA KKs patent filings in countries
# Country Total Patents
#1 Japan 119

Patent filings per year

Chart showing NIPPON DENKI SYLVANIA KKs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Maeda Akira 27
#2 Kaneda Isao 19
#3 Matsubara Osamu 18
#4 Tomita Toshiteru 14
#5 Ikeuchi Youichi 14
#6 Kumagai Naomichi 13
#7 Maeda Tsutomu 13
#8 Urata Yoshizou 12
#9 Matsuno Takashi 12
#10 Mizuguchi Mitsuo 10

Latest patents

Publication Filing date Title
JPS5844641A Manufacturing method of aperture type fluorescent lamp
JPS5818807A Supply for switch block
JPS5818806A Assembly of lighting apparatus
JPS57202623A Manufacture of circular fluorescent lamp
JPS57197702A Positioning of reflection plate
JPS57197704A Assembly of lighting apparatus body and stabilizer
JPS57197703A Positioning of lighting apparatus body
JPS57196403A Supply of stabilizer
JPS57196452A Manufacture of circular fluorescent lamp
JPS57194402A Assembling jig for lighting apparatus
JPS57180854A Manufacture of fluorescent lamp
JPS57180853A Manufacture of fluorescent lamp
JPS57174827A Manufacture of circular fluorescent lamp
JPS57162241A Manufacture of circular fluorescent lamp
JPS57162252A Fluorescent lamp
JPS57162240A Manufacture of circular fluorescent lamp
JPS57136729A Separating method for phosphor
JPS57136728A Formation of film
JPS57128438A Manufacture of circular fluorescent lamp
JPS5792739A Manufacture of u-lamp