Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Junichi Suetsugu — 56 Patents

Nec: 55 patents #56 of 14,502Top 1%
FIFujifilm Business Innovation: 1 patents #3,981 of 5,238Top 80%
Tokyo, JP: #1,549 of 90,295 inventorsTop 2%
Overall (All Time): #44,020 of 4,157,543Top 2%
56 Patents All Time
Junichi Suetsugu has been granted 56 US patents while listed as an inventor at Nec. The first was granted in 1998 and the most recent in December 2003. Junichi Suetsugu ranks #44,020 of 4,157,543 US inventors in our database (top 1.1%). Patent records list Junichi Suetsugu in Tokyo, JP.

Patents per Year

Patents granted per year, 1998 to 2003Bar chart with a peak of 24 patents in 2000.peak 241998: 3 patents19981999: 12 patents19992000: 24 patents20002001: 11 patents20012002: 4 patents20022003: 2 patents2003

Issued Patents All Time

Showing 1–25 of 56 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
6655789 Ink jet print head Ryosuke Uematsu, Kazuo Shima, Minoru Yamada, Yoshihiro Hagihara, Junichi Fujisawa 2003-12-02 $20,000
6542704 Device and method for constantly adjusting the concentration and filling level of developing solution in a printing process 2003-04-01
6412895 Electrostatic ink jet printer Hitoshi Takemoto, Tadashi Mizoguchi, Hitoshi Minemoto, Kazuo Shima, Yoshihiro Hagiwara +1 more 2002-07-02 $11,000
6390607 Ink jet print head Ryosuke Uematsu, Kazuo Shima, Minoru Yamada, Yoshihiro Hagihara, Junichi Fujisawa 2002-05-21 $15,000
6389244 Toner density sensor, and ink jet head, developing unit and image forming apparatus in which toner density sensor is used Kazuo Shima, Toru Yakushiji 2002-05-14 $20,000
6362859 Electrostatic ink jet recording head having electrophoretic electrode and gravity ink reservoir Yoshihiro Hagiwara, Ryosuke Uematsu, Hitoshi Minemoto, Kazuo Shima 2002-03-26 $32,000
RE37453 Ink jet print head Ryosuki Utmatsu, Kazuo Shima, Minoru Yamada, Yoshihiro Hagihara, Junichi Fujisawa 2001-11-27
6290338 Ink jet print head Ryosuke Uematsu, Kazuo Shima, Minoru Yamada, Yoshihiro Hagihara, Junichi Fujisawa 2001-09-18 $29,000
6224193 Inkjet recording apparatus having gate electrodes and print head thereof Hitoshi Minemoto, Yoshihiro Hagiwara, Tadashi Mizocuchi, Hitoshi Takemoto, Kazuo Shima +1 more 2001-05-01 $39,000
6220696 Simple electrostatic ink jet printing head having low cost Kazuo Shima, Yoshihiro Hagiwara, Ryosuke Uematsu, Hitoshi Minemoto, Toru Yakushiji +2 more 2001-04-24 $30,000
6220695 Ink-jet recording device for suppressing excess electrophoretic accumulation of charged particles Hitoshi Minemoto, Yoshihiro Hagiwara, Ryosuke Uematsu, Kazuo Shima 2001-04-24 $30,000
6213591 Injet recording apparatus Kazuo Shima, Ryosuke Uematsu, Tadashi Mizoguchi, Hitoshi Minemoto, Hitoshi Takemoto +2 more 2001-04-10 $32,000
6208321 Electrostatic ink jet recorder having ejection electrodes and auxiliary electrodes divided into groups Tadashi Mizoguchi, Hitoshi Takemoto, Tomoya Saeki, Hitoshi Minemoto, Kazuo Shima +2 more 2001-03-27 $40,000
6190004 Inkjet recording apparatus Hitoshi Minemoto, Yoshihiro Hagiwara, Tadashi Mizocuchi, Hitoshi Takemoto, Kazuo Shima +1 more 2001-02-20 $46,000
6183065 Control system for applying biasing and recording signals to recording electrodes of an electrostatic ink jet recording device Yoshihiro Hagiwara, Kazuo Shima, Tadashi Mizoguchi, Hitoshi Minemoto, Hitoshi Takemoto +1 more 2001-02-06 $61,000
6179418 Electrostatic ink jet recording apparatus that adjusts the amount of heat based on the type of recording material Tadashi Mizoguchi, Hitoshi Minemoto, Hitoshi Takemoto, Kazuo Shima, Yoshihiro Hagiwara +1 more 2001-01-30 $63,000
6172693 Ink jet recording head having ink stirring electrodes for dispersing ink Hitoshi Minemoto, Yoshihiro Hagiwara, Tadashi Mizoguchi, Hitoshi Takemoto, Kazuo Shima +1 more 2001-01-09 $49,000
6164760 Toner quantity detection and replenishment system for an electrostatic ink jet recording apparatus Tadashi Mizoguchi, Hitoshi Takemoto, Hitoshi Minemoto, Kazuo Shima, Yoshihiro Hagiwara +1 more 2000-12-26 $60,000
6161911 Ink jet recording device Hitoshi Minemoto, Yoshihiro Hagiwara, Tadashi Mizoguchi, Hitoshi Takemoto, Kazuo Shima +2 more 2000-12-19 $75,000
6161922 Electrostatic ink-jet recording head having a head chip provided with groove and flange portions Kazuo Shima, Tadashi Mizoguchi, Hitoshi Minemoto, Tomoya Saeki, Hitoshi Takemoto +2 more 2000-12-19 $75,000
6155672 Apparatus and method for ink-jet printing using extending ink-ejecting bars and method of manufacturing of the apparatus Kazuo Shima, Tadashi Mizoguchi, Hitoshi Minemoto, Hitoshi Takemoto, Yoshihiro Hagiwara +1 more 2000-12-05 $84,000
6152557 Electrostatic ink jet recorder Yoshihiro Hagiwara, Tadashi Mizoguchi, Hitoshi Minemoto, Hitoshi Takemoto, Kazuo Shima +1 more 2000-11-28 $62,000
6142610 Precision ejection ink-jet printing apparatus Hitoshi Minemoto, Yoshihiro Hagiwara, Tadashi Mizoguchi, Hitoshi Takemoto, Kazuo Shima +2 more 2000-11-07 $49,000
6135590 Ink cartridge capable of preventing leak of ink Tomoya Saeki, Tadashi Mizoguchi, Hitoshi Minemoto, Hitoshi Takemoto, Kazuo Shima +2 more 2000-10-24 $57,000
6135588 Electrostatic ink-jet printing head having projections extending out of an ink chamber Yoshihiro Hagiwara, Tadashi Mizoguchi, Hitoshi Minemoto, Hitoshi Takemoto, Kazuo Shima +2 more 2000-10-24 $57,000