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

Ichiro Yoshida — 82 Patents

Denso: 48 patents #42 of 11,792Top 1%
Sumitomo Electric Industries: 11 patents #2,408 of 21,551Top 15%
NCNippondenso Co.: 5 patents #465 of 3,479Top 15%
Fujitsu Limited: 4 patents #7,093 of 24,456Top 30%
TKToyo Boseki Kabushiki Kaisha: 4 patents #173 of 1,085Top 20%
Nec: 3 patents #4,217 of 14,502Top 30%
Toyota: 1 patents #15,486 of 26,838Top 60%
KLKenwood Limited: 1 patents #119 of 319Top 40%
DCDainippon Screen Mfg. Co.: 1 patents #531 of 977Top 55%
DIDenso Wave Incorporated: 1 patents #133 of 250Top 55%
FAFit Ag: 1 patents #2 of 13Top 20%
ATAdvanced Color Technology: 1 patents #9 of 9Top 100%
SCSanyo Electric Co.: 1 patents #3,644 of 6,347Top 60%
Takahama, JP: #1 of 145 inventorsTop 1%
Overall (All Time): #21,533 of 4,157,543Top 1%
82 Patents All Time
Ichiro Yoshida has been granted 82 US patents while listed as an inventor at Denso. The first was granted in 1981 and the most recent in August 2024. Ichiro Yoshida ranks #21,533 of 4,157,543 US inventors in our database (top 0.52%). Patent records list Ichiro Yoshida in Takahama, JP.

Patents per Year

Patents granted per year, 1993 to 2024Bar chart with a peak of 6 patents in 1999.peak 61993: 2 patents19931994: 3 patents1995: 3 patents1996: 4 patents19961997: 2 patents1998: 4 patents1999: 6 patents19992000: 5 patents2001: 1 patents2002: 3 patents20022003: 1 patents2004: 1 patents2005: 1 patents20052007: 1 patents2008: 1 patents2009: 6 patents20092010: 5 patents2011: 2 patents2012: 1 patents20122014: 3 patents2015: 2 patents2016: 1 patents20162017: 3 patents2018: 2 patents2019: 3 patents20192020: 2 patents2021: 3 patents2022: 2 patents20222023: 1 patents2024: 1 patents2024

Issued Patents All Time

Showing 51–75 of 82 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
6103300 Method for manufacturing a recording medium having metal substrate surface Hiroshi Iida, Isamu Ito, Hiroyuki Nakamura 2000-08-15
5968696 Electrophotographic photoreceptor Shozo Kaieda 1999-10-19
5963149 Movable body communication system Michinaga Nagura, Rokuro Okada 1999-10-05
5955970 On-board electronic device for use in electronic toll collection system Masamiki Ando, Mitsuhiro Mizutani 1999-09-21
5933097 Method for adjusting a threshold value of a vehicle-mounted device employed in an automatic toll-collecting system Takashi Sakurai 1999-08-03
5926546 Communication device and system for mobile encrypted communication Asako Maeda, Toshihide Ando 1999-07-20
5877704 Parking-site reservation control system 1999-03-02
5840126 Washing/drying method utilizing sonication Hiroshi Iida, Shuzo Kawashima, Fukuji Kuroiwa, Isamu Ito, Satoru Asanome +1 more 1998-11-24
5790051 Apparatus for checking for loading of a storage medium Manabu Matsumoto 1998-08-04
5751227 Communication system for vehicles Taisei Kato, Toshihide Ando, Manabu Matsumoto, Mutsushi Yamashita, Yoshiyuki Kago 1998-05-12
5734671 Semiconductor laser diode Tsukuru Katsuyama, Jun Hashimoto, Michio Murata 1998-03-31
5663975 Multi-beam semiconductor laser with separated contacts characterized by semiconductor mixed crystal and active layer Tsukuru Katsuyama, Junichi Hashimoto 1997-09-02
5617957 Method of sorting semiconductor lasers Tsukuru Katsuyama, Jun Hashimoto 1997-04-08
5586135 Semiconductor laser having an AlGaInP cladding layer Tsukuru Katsuyama, Jun Hashimoto 1996-12-17
5581249 Mobile communication system 1996-12-03
5572356 Optical amplifier Masayuki Shigematsu, Michio Murata 1996-11-05
5496767 Semiconductor laser and manufacturing method of the same 1996-03-05
5479427 Semiconductor laser and method of manufacturing the same Tsukuru Katsuyama, Junichi Hashimoto 1995-12-26
5446753 Current block type semiconductor laser 1995-08-29
5446537 Method of sorting semiconductor lasers Tsukuru Katsuyama, Jun Hashimoto 1995-08-29
5361789 Washing/drying method and apparatus Hiroshi Iida 1994-11-08
5359619 Multi-beam semiconductor laser and method for producing the same Tsukuru Katsuyama, Junichi Hashimoto 1994-10-25
5276698 Semiconductor laser having an optical waveguide layer including an AlGaInP active layer Tsukuru Katsuyama 1994-01-04
5274656 Semiconductor laser 1993-12-28
5203927 Washing/drying method with an aqueous solution containing surfactant Hiroshi Iida, Shuzo Kawaashima, Fukuji Kuroiwa, Isamu Ito, Satoru Asanome +1 more 1993-04-20