Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
HM

Hitoshi Masuda — 14 Patents

Nec: 6 patents #2,379 of 14,502Top 20%
DCDowa Mining Co.: 3 patents #57 of 324Top 20%
TKTanaka Kikinzoku Kogyo K.K.: 1 patents #216 of 436Top 50%
TCToppan Printing Co.: 1 patents #691 of 1,467Top 50%
UNUnitika: 1 patents #257 of 620Top 45%
Tokyo, JP: #11,195 of 90,295 inventorsTop 15%
Overall (All Time): #332,869 of 4,157,543Top 9%
14 Patents All Time
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 2006Bar chart with a peak of 2 patents in 1985.peak 21985: 2 patents19851986: 1 patents1989: 1 patents19891990: 1 patents1993: 2 patents19931994: 2 patents1996: 1 patents19961999: 1 patents2002: 1 patents20022005: 1 patents2006: 1 patents2006

Issued Patents All Time

Showing 1–14 of 14 patents

Patent #TitleCo-InventorsDateApprox 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