Hitoshi Masuda has been granted 14 US patents while listed as an inventor at Nec . The first was granted in 1985 and the most recent in March 2006. Hitoshi Masuda ranks #332,869 of 4,157,543 US inventors in our database (top 8.0%). Patent records list Hitoshi Masuda in Tokyo, JP.
Patents per Year Patents granted per year, 1985 to 2006 Bar chart with a peak of 2 patents in 1985. peak 2 1985: 2 patents 1985 1986: 1 patents 1989: 1 patents 1989 1990: 1 patents 1993: 2 patents 1993 1994: 2 patents 1996: 1 patents 1996 1999: 1 patents 2002: 1 patents 2002 2005: 1 patents 2006: 1 patents 2006
Issued Patents All Time
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Showing 1–14 of 14 patents
Patent # Title Co-Inventors Date Approx Value ⓘ
7013060
Optical cross-connect device
Teruya Sugiyama , Mitsuteru Inoue , Dong-Hak Shin
2006-03-14
6947626
Optical cross-connect device
Teruya Sugiyama , Mitsuteru Inoue , Shin Dong-Hak
2005-09-20
6475450
Method of leaching zinc concentrate
Kaoru Saruta , Norihito Ishimori
2002-11-05
5867370
Plastic shield enclosure and method of producing the same
—
1999-02-02
$22,000
5568529
Signal disconnection monitor apparatus and signal period detection apparatus therefor
—
1996-10-22
$17,000
D353808
Portable radio phone
Tetsuya Taniguchi , Minoru Hotsumi , Kozo Maemura
1994-12-27
5335274
Extendable telephone
Masataka Suzuki , Masataka Ohno , Kazuyoshi Kobayashi , Hiromitsu Nakamura
1994-08-02
$33,000
5252305
Process of recovering platinum group metal
Nobuyasu Ezawa , Hiroshi Inoue , Shoei Takada
1993-10-12
5196066
Facing material spray apparatus
Motoo Kusuda , Hirokazu Ueda
1993-03-23
4919624
Connection terminal structure of electronic equipment
—
1990-04-24
$29,000
4827516
Method of analyzing input speech and speech analysis apparatus therefor
Yusuke Tsukahara , Mikio Yamaguchi , Masao Tanabe
1989-05-02
4614586
Semipermeable polymeric film membrane
Koichi Takada , Yoshiro Nakata
1986-09-30
D281974
Mobile radio transceiver
Masataka Suzuki
1985-12-31
4517096
Method of selective separation and concentration of gallium and/or indium from solutions containing low levels of them and high levels of other metal ions
Kunio Sekine , Kodo Ishibashi , Masahide Hirai , Shozo Tomoshige , Kozo Kondo
1985-05-14