TI

Tadashi Ishikawa

Canon: 22 patents #2,832 of 19,416Top 15%
NS Nippon Steel: 9 patents #228 of 4,423Top 6%
KT Kabushiki Kaisha Toshiba: 7 patents #4,294 of 21,451Top 25%
FI Fujifilm Business Innovation: 7 patents #1,321 of 5,238Top 30%
SK Seiko Koki Kabushiki Kaisha: 5 patents #16 of 27Top 60%
SC Seikosha Co.: 5 patents #73 of 312Top 25%
NM Nippon Steel & Sumitomo Metal: 4 patents #273 of 1,491Top 20%
SE Seiko Epson: 2 patents #4,555 of 7,774Top 60%
SU Subaru: 2 patents #413 of 1,436Top 30%
NT NTT: 1 patents #2,911 of 4,871Top 60%
NE Nec: 1 patents #7,889 of 14,502Top 55%
CL Copal Company Limited: 1 patents #52 of 139Top 40%
SP Seiko Precision: 1 patents #81 of 173Top 50%
Overall (All Time): #24,999 of 4,157,543Top 1%
76
Patents All Time

Issued Patents All Time

Showing 1–25 of 76 patents

Patent #TitleCo-InventorsDate
11568313 Control apparatus, analysis apparatus, communication system, data processing method, data transmission method, and non-transitory computer readable medium Daisuke Yokoi, Takuya Itou, Ichirou Akimoto 2023-01-31
11554590 Printing apparatus Kohei Tatsuta 2023-01-17
11446937 Printing apparatus Kohei Tatsuta 2022-09-20
10500817 Electron-beam welded joint, steel for electron-beam welding, and method of manufacturing the same Ryuichi Honma, Ryuji Uemori, Akihiko Kojima, Manabu Hoshino 2019-12-10
9991482 Magnesium-air fuel cell Yoshiaki Hasebe 2018-06-05
9871277 Magnesium-air fuel cell and power supply device using the same Yoshiaki Hasebe 2018-01-16
9716280 Magnesium-air fuel cell Yoshiaki Hasebe, Masato Hamade 2017-07-25
9352424 Butt welding joint using high-energy density beam Ryuichi Honma, Kazutoshi Ichikawa 2016-05-31
8992109 Butt-welded joint of welded structure, and method for manufacturing the same Ryuichi Honma, Kazutoshi Ichikawa 2015-03-31
8946501 Liquid leakage detection system Naoyuki Kamatani, Yoshiaki Hasebe 2015-02-03
8653403 Butt-welded joint and method for manufacturing same Ryuichi Honma 2014-02-18
8623154 Electron-beam welded joint, steel for electron-beam welding, and manufacturing method Ryuichi Honma, Ryuji Uemori, Akihiko Kojima, Manabu Hoshino 2014-01-07
8280296 Powder transporting device and image forming apparatus Tomoya Ichikawa 2012-10-02
8114528 Electron beam welded joint excellent in brittle fracture resistance Ryuichi Honma, Akihiko Kojima, Yuzuru Yoshida, Youichi Tanaka 2012-02-14
7920816 Developer collection device and image forming apparatus Mihoko Tanaka 2011-04-05
7857918 Method of production of steel product with nanocrystallized surface layer Kiyotaka Nakashima, Tetsuro Nose, Tomonori Tominaga, Yakichi Higo, Kazuki Takashima 2010-12-28
7829202 Large-heat-input butt welded joints having excellent brittle fracture resistance Takehiro Inoue, Hiroshi Shimanuki, Tadashi Koseki, Jun Otani, Masanori Minagawa +1 more 2010-11-09
7754033 Method of improvement of toughness of heat affected zone at welded joint of steel plate Kiyotaka Nakashima, Tetsuro Nose 2010-07-13
7748596 Welded structure having excellent resistance to brittle crack propagation and welding method therefor Takehiro Inoue, Hiroshi Shimanuki, Tadashi Koseki 2010-07-06
7735129 Firewall device Kazuhiko Nagata, Taisuke Oka, Ryoichi Suzuki, Takashi Ikegawa, Hiroyuki Ichikawa 2010-06-08
7695825 Circularly welded joint featuring excellent fatigue strength, method of producing circularly welded joint and welded structure Kiyotaka Nakashima 2010-04-13
7574157 Image formation device with auxiliary roller 2009-08-11
7399371 Treatment method for improving fatigue life and long-life metal material treated by using same treatment Tomonori Tominaga, Kazumi Matsuoka, Tadashi Kasuya, Koji Homma 2008-07-15
6934497 Image forming apparatus with belt, plural sensitized bodies, and belt positioning mechanism Kazuyoshi Hagiwara 2005-08-23
6090226 Steel plate excellent in brittle crack propagation arrest characteristics and low temperature toughness and process for producing same Toshiei Hasegawa, Yuji Nomiyama 2000-07-18