TI

Takahiko Ishiwatari

Canon: 7 patents #7,830 of 19,416Top 45%
Overall (All Time): #767,334 of 4,157,543Top 20%
7
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
5270990 Tracking error signal detecting apparatus using an electron beam and apparatus for effecting recording/reproduction of information by the utilization of a plurality of electron beams Nobutoshi Mizasawa, Ryuichi Arai, Mamoru Miyawaki, Yukio Masuda, Hitoshi Oda 1993-12-14
4931692 Luminescing member, process for preparation thereof, and electroluminescent device employing same Hiroshi Takagi, Kazuaki Ohmi, Masao Sugata, Hisanori Tsuda 1990-06-05
4906894 Photoelectron beam converting device and method of driving the same Mamoru Miyawaki, Yukio Masuda, Ryuichi Arai, Nobutoshi Mizusawa, Hitoshi Oda 1990-03-06
4906833 Electron beam information exchange apparatus with converting light signals Mamoru Miyawaki, Yukio Masuda, Ryuichi Arai, Nobutoshi Mizusawa, Masahiko Okunuki 1990-03-06
4777068 Optical recording medium Hiroshi Omata, Shigeharu Iijima, Eizo Sasamori, Katsuhiko Takano, Masaaki Matsushima +5 more 1988-10-11
4734334 Magneto-optical recording medium Masaaki Matsushima, Hiroyoshi Kishi, Hisaaki Kawade 1988-03-29
4658388 Optical recording medium which includes a corrosion resistant film of a mixture of a carbide and a nitride Hiroyoshi Kishi, Hisaaki Kawade, Masaaki Matsushima, Mitsuharu Sawamura, Kazuoki Honguu 1987-04-14