IN

Isao Nakagawa

HI Hitachi: 3 patents #133 of 2,935Top 5%
Overall (1989): #9,949 of 140,708Top 8%
3
Patents 1989

Issued Patents 1989

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
4860090 Digital signal processing circuit driven by a switched clock and used in television receiver for processing standard and nonstandard television signals Toshinori Murata, Ikuya Arai, Toshiyuki Kurita 1989-08-22
4853765 Sequential scanning converter with frame comb filter and freeze frame feature Kenji Katsumata, Masato Sugiyama, Takaaki Matono, Shigeru Hirahata, Kazuo Ishikura +1 more 1989-08-01
4821112 Detection circuit for detecting standard television signals and nonstandard television signals Toshiyuki Sakamoto, Ikuya Arai, Toshiyuki Kurita, Toshinori Murata, Masahiko Achiha +1 more 1989-04-11