MH

Masashi Hiraiwa

HI Hitachi: 10 patents #4,206 of 28,497Top 15%
HS Hitachi Communication Systems: 2 patents #16 of 83Top 20%
HC Hitachi Software Engineering Co.: 2 patents #91 of 502Top 20%
Overall (All Time): #524,659 of 4,157,543Top 15%
10
Patents All Time

Issued Patents All Time

Showing 1–10 of 10 patents

Patent #TitleCo-InventorsDate
6335917 Regulation method and apparatus for ATM cell delay variation Shinichi Hamamoto, Atsuo Hatono 2002-01-01
6021134 Cell/packet assembly and disassembly apparatus and network system Satoru Inazawa, Tatsuo Mochinaga, Kenji Kawakita 2000-02-01
5774466 Regulation method and apparatus for ATM cell delay variation Shinichi Hamamoto, Atsuo Hatono 1998-06-30
5737314 ATM exchange, ATM multiplexer and network trunk apparatus Atsuo Hatono 1998-04-07
5734653 Cell/ packet assembly and disassembly apparatus and network system Satoru Inazawa, Tatsuo Mochinaga, Kenji Kawakita 1998-03-31
5533022 Digital interface system for offices connected by plural digital lines 1996-07-02
5490135 Method and system for arranging common channel signal network through Yoshiaki Asambo, Noboru Mizuhara 1996-02-06
5420854 Digital interface system 1995-05-30
5333187 Switching system for electronic switcher Yoshiaki Asambo 1994-07-26
5317633 Exchanging system and method of establishing data call thereof 1994-05-31