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Jun Sakai

Brother Kogyo: 5 patents #10 of 215Top 5%
HI Hitachi: 2 patents #336 of 2,935Top 15%
HK Honda Giken Kogyo K.K.: 2 patents #1 of 30Top 4%
Overall (1989): #1,097 of 140,708Top 1%
7
Patents 1989

Issued Patents 1989

Showing 1–7 of 7 patents

Patent #TitleCo-InventorsDate
4889688 Process of producing nodular cast iron Makoto Suenaga, Fumio Obata, Takeshi Natsume 1989-12-26
4889687 Nodular cast iron having a high impact strength and process of treating the same Yasuoki Ishihara, Fumio Obato, Takeshi Natsume 1989-12-26
4875074 Image recording apparatus Kazuo Sangyoji, Shigeyuki Hayashi, Makoto Suzuki, Yasuo Kimura 1989-10-17
4865938 Photo and pressure sensitive recording media comprising an adhesive agent Koji Suzuki, Shunichi Higashiyama 1989-09-12
4851881 Optical printing system Takemi Yamamoto, Koji Kobayakawa, Ichiro Sasaki, Ryohei Komiya, Akira Sago +2 more 1989-07-25
4825256 Image recording device Hitoshi Nakai, Takemi Yamamoto, Eiji Fujii 1989-04-25
4810614 Method of recording information on photosensitive and pressure-sensitive sheet utilizing mask original form Kazuo Sangyoji, Takemi Yamamoto, Tsugio Okamoto, Naoyuki Hatta, Yuji Asano +4 more 1989-03-07