YT

Yoshifumi Tomita

HI Hitachi: 33 patents #772 of 28,497Top 3%
SU Subaru: 6 patents #124 of 1,684Top 8%
HC Hitachi Powdered Metals Co.: 1 patents #113 of 246Top 50%
KO Kasei Optonix: 1 patents #58 of 142Top 45%
📍 Mobara, JP: #23 of 731 inventorsTop 4%
Overall (All Time): #79,526 of 4,157,543Top 2%
40
Patents All Time

Issued Patents All Time

Showing 26–40 of 40 patents

Patent #TitleCo-InventorsDate
4537851 Process of forming powder pattern using positive diazonium salt photoresist Saburo Nonogaki, Nobuaki Hayashi 1985-08-27
4482842 Curved tube type ultra high pressure mercury arc discharge lamp device Takashi Fujimura, Kiyoshi Sawatari 1984-11-13
4469766 Method of forming cathode-ray tube phosphor screen Masahiro Nishizawa, Kiyoshi Miura, Hiroshi Yokomizo, Osamu Sasaya 1984-09-04
4425419 Photosensitive composition Osamu Sasaya, Masahiro Nishizawa, Hiroshi Yokomizo, Kiyoshi Miura 1984-01-10
4396705 Pattern forming method and pattern forming apparatus using exposures in a liquid Masamoto Akeyama, Saburo Nonogaki 1983-08-02
4391885 Method of manufacturing fluorescent screens of cathode ray tubes Hiromitsu Nakai 1983-07-05
4352878 Photoresist composition Kiyoshi Miura, Naomitsu Watanabe 1982-10-05
4331752 Method of forming fluorescent screens of color picture tubes Hiroshi Yokomizo, Masahiro Nishizawa, Kiyoshi Miura, Osamu Sasaya 1982-05-25
4324850 Method of forming a fluorescent screen for a color picture tube Masahiro Nishizawa, Hiroshi Yokomizo, Hiromitu Nakai 1982-04-13
4276363 Process for forming phosphor screens with treated phosphors Toshikatsu Manabe, Saburo Nonogaki, Hajime Morishita, Shoichi Uchino, Masahiro Nishizawa +2 more 1981-06-30
4273842 Process for forming patternwise coated powder layer Saburo Nonogaki, Hajime Morishita, Michiaki Hashimoto, Toshikatsu Manabe, Masahiro Nishizawa 1981-06-16
4267204 Method of manufacturing striped phosphor screen for black matrix type color picture tube Masahiro Nishizawa, Takashi Fujimura 1981-05-12
4263384 Method of forming fluorescent screens of color picture tubes Masahiro Nishizawa 1981-04-21
4254197 Process of forming photoresist layer on a glass substrate Kiyoshi Miura, Naomitsu Watanabe 1981-03-03
4205255 Color cathode ray tube with reflective layers having apices centered between matrix windows 1980-05-27