TK

Tadashi Kasai

Ricoh Company: 42 patents #327 of 9,818Top 4%
OC Oki Electric Industry Co.: 14 patents #69 of 2,807Top 3%
OD Oki Data: 4 patents #186 of 635Top 30%
PE Pentax: 4 patents #113 of 396Top 30%
PE Pentax: 1 patents #515 of 761Top 70%
📍 Yokohama, GA: #4 of 12 inventorsTop 35%
Overall (All Time): #33,580 of 4,157,543Top 1%
65
Patents All Time

Issued Patents All Time

Showing 1–25 of 65 patents

Patent #TitleCo-InventorsDate
12391036 Output device, output system, and output method 2025-08-19
RE47726 Image forming apparatus Shinji Aoki, Haruo Iimura, Yasuhiko Ogino, Naomi Sugimoto, Shinya Tanaka +1 more 2019-11-12
9989876 Image forming apparatus and method for calculating a toner degradation rate Mutsuki Morinaga, Jun Hitosugi, Takamasa Ozeki, Makoto Yasuda, Kunio Hasegawa +6 more 2018-06-05
9684259 Image forming apparatus Takatsugu Komori, Emiko Shiraishi, Takamasa Ozeki, Jun Hitosugi, Kunio Hasegawa +4 more 2017-06-20
9599946 Image forming apparatus Mutsuki Morinaga, Jun Hitosugi, Takamasa Ozeki, Makoto Yasuda, Kunio Hasegawa +4 more 2017-03-21
9588460 Image forming apparatus Jun Hitosugi, Kunio Hasegawa, Takamasa Ozeki, Emiko Shiraishi, Wakana Itoh +3 more 2017-03-07
9513594 Protective layer forming device and image forming apparatus Kunio Hasegawa, Hiroshi Nakai, Kenji Komito, Takamasa Ozeki, Jun Hitosugi +6 more 2016-12-06
9488931 Image forming apparatus Makoto Yasuda, Jun Hitosugi, Takamasa Ozeki, Mutsuki Morinaga, Emiko Shiraishi +14 more 2016-11-08
9316987 Image forming apparatus and image forming method Jun Hitosugi, Takamasa Ozeki, Mutsuki Morinaga, Emiko Shiraishi, Wakana Itoh +4 more 2016-04-19
9310743 Image forming apparatus and cleaning of image forming apparatus Emiko Shiraishi, Makoto Yasuda, Yuichi Aizawa, Mutsuki Morinaga, Hitoshi Yamamoto 2016-04-12
9280125 Image forming apparatus Wakana Itoh, Takamasa Ozeki, Jun Hitosugi, Emiko Shiraishi, Makoto Yasuda +4 more 2016-03-08
9239542 Image forming apparatus Makoto Yasuda, Mutsuki Morinaga, Hitoshi Yamamoto, Emiko Shiraishi, Yuichi Aizawa 2016-01-19
9152104 Image forming apparatus and method capable of improving fixing quality Shinya Kobayashi, Yoshihiro Sonohara, Masakazu Terao, Yoichi Sakurai 2015-10-06
9128428 Image forming apparatus which includes a colorless toner image forming device Mutsuki Morinaga, Masato Iio, Makoto Yasuda, Yuichi Aizawa, Hitoshi Yamamoto 2015-09-08
9116450 Toner, printed material, method of preparing printed material and image forming apparatus having varnish application means Masato Iio, Kentarou Matsumoto, Shinya Kobayashi, Akio Tsujita, Katsuhiro Shinohara +2 more 2015-08-25
9020382 Image forming apparatus Shinji Aoki, Haruo Iimura, Yasuhiko Ogino, Naomi Sugimoto, Shinya Tanaka +1 more 2015-04-28
9014580 Image forming apparatus and method capable of improving fixing quality Shinya Kobayashi, Yoshihiro Sonohara, Masakazu Terao, Yoichi Sakurai 2015-04-21
8947732 Print control device and print control method Masanori Kurosawa, Hiroaki Suzuki, Masato Iio, Makoto Yasuda, Masakazu Terao +2 more 2015-02-03
8923713 Image forming apparatus, image forming method, and image forming program Masakazu Terao, Shinya Kobayashi, Yoshihiro Sonohara, Yoichi Sakurai 2014-12-30
8918045 Image glossing apparatus, image glossing method, and recording medium storing image glossing program Yoichi Sakurai, Shinya Kobayashi, Masakazu Terao, Yoshihiro Sonohara 2014-12-23
8761628 Image forming apparatus, image forming method, and image forming program Masakazu Terao, Shinya Kobayashi, Yoshihiro Sonohara, Yoichi Sakurai 2014-06-24
8655206 Image forming apparatus and image forming method Shinya Kobayashi, Yoshihiro Sonohara, Masakazu Terao 2014-02-18
8630573 Image forming method, image forming apparatus, varnish applicator, and toner Masato Iio, Tsuyoshi Asami, Kentarou Matsumoto, Shinya Kobayashi, Akio Tsujita +2 more 2014-01-14
8626040 Image forming apparatus Shinya Kobayashi, Akio Tsujita, Masato Iio, Katsuhiro Shinohara, Masakazu Terao 2014-01-07
8565633 Image forming system, and image forming method Yoshihiro Sonohara, Shinya Kobayashi, Masakazu Terao 2013-10-22