WH

Waka Hasegawa

Canon: 29 patents #1,943 of 19,416Top 15%
Overall (All Time): #130,773 of 4,157,543Top 4%
29
Patents All Time

Issued Patents All Time

Showing 1–25 of 29 patents

Patent #TitleCo-InventorsDate
11513448 Liquid developer and method for manufacturing liquid developer Ryo Natori, Ayano Mashida, Junji Ito, Yasuhiro Aichi, Jun Shirakawa 2022-11-29
10545424 Liquid developer and method of producing liquid developer Ryo Natori, Ayano Mashida, Junji Ito, Yasuhiro Aichi, Jun Shirakawa 2020-01-28
10423084 Method for producing liquid developer Yasuhiro Aichi, Junji Ito, Jun Shirakawa, Ryo Natori, Ayano Mashida 2019-09-24
10087328 Compound having azo skeleton, pigment dispersant, pigment composition, pigment dispersion, and toner Yasuaki Murai, Yuki Tsujii, Ayano Mashida, Kosuke Mukumoto, Takayuki Toyoda +4 more 2018-10-02
9926450 Compound having azo skeleton structure, pigment-dispersing agent, pigment composition, pigment dispersion, and toner Masashi Kawamura, Yasuaki Murai, Kosuke Mukumoto, Yuki Tsujii, Ayano Mashida +4 more 2018-03-27
9897936 Method of producing curable liquid developer and curable liquid developer Ryo Natori, Ayano Mashida, Junji Ito, Yasuhiro Aichi, Jun Shirakawa 2018-02-20
9880482 Ultraviolet-curable liquid developer and method of producing same Ryo Natori, Ayano Mashida, Junji Ito, Yasuhiro Aichi, Jun Shirakawa 2018-01-30
9857716 Curable liquid developer and image-forming method using curable liquid developer Ryo Natori, Ayano Mashida, Junji Ito, Yasuhiro Aichi, Jun Shirakawa 2018-01-02
9834683 Compound having azo skeleton structure, pigment dispersant, pigment composition, pigment dispersion, and toner Chiaki Nishiura, Yuki Tsujii, Yasuaki Murai, Takayuki Toyoda, Masanori Seki +3 more 2017-12-05
9777087 Polymer including phthalocyanine structure, method for producing the polymer, pigment composition, pigment dispersion, and toner Yasuaki Murai, Osamu Matsushita, Takayuki Toyoda, Ayano Mashida, Kosuke Mukumoto +1 more 2017-10-03
9740118 Method of producing liquid developer Ryo Natori, Ayano Mashida, Junji Ito, Yasuhiro Aichi, Jun Shirakawa 2017-08-22
9715187 Method of producing a compound having a colorant structure, and toner containing a compound obtained by the production method Kosuke Mukumoto, Yasuaki Murai, Yuki Hasegawa, Takayuki Toyoda, Ayano Mashida +3 more 2017-07-25
9625845 Compound having azo skeleton structure, pigment-dispersing agent, pigment composition, pigment dispersion, and toner Ayano Mashida, Yasuaki Murai, Masanori Seki, Takayuki Toyoda, Masashi Kawamura +4 more 2017-04-18
9618867 Pigment dispersion and toner Takayuki Toyoda, Yasuaki Murai, Masanori Seki, Chiaki Nishiura, Yuki Tsujii +2 more 2017-04-11
9593243 Compound, pigment dispersing agent, pigment composition, pigment dispersion and toner containing said compound Yuki Tsujii, Yasuaki Murai, Takayuki Toyoda, Masanori Seki, Chiaki Nishiura +3 more 2017-03-14
9556290 Method for producing compound having colorant structure at main chain terminal of polymer, and pigment dispersant, pigment composition, pigment dispersion and toner containing compound obtained by the production method Chiaki Nishiura, Yuki Hasegawa, Ayano Mashida, Takayuki Toyoda, Masashi Hirose +3 more 2017-01-31
9470995 Compound having azo skeleton and pigment dispersant, pigment composition, pigment dispersion, and toner containing the compound Masanori Seki, Yuki Hasegawa, Masashi Kawamura, Taiki Watanabe, Chiaki Nishiura +4 more 2016-10-18
9298118 Azo compound, pigment dispersant containing the azo compound, pigment composition, pigment dispersion and toner Masashi Kawamura, Yasuaki Murai, Yuki Hasegawa, Takayuki Toyoda, Taiki Watanabe +4 more 2016-03-29
9249308 Compound having bisazo dye skeleton, pigment composition containing the same, pigment dispersion, ink, and color filter resist composition Yuki Hasegawa, Yasuaki Murai, Masatake Tanaka, Takayuki Toyoda, Masashi Kawamura +1 more 2016-02-02
9229345 Toner Naotaka Ikeda, Yasuhiro Hashimoto, Yuhei Terui, Shohei Shibahara, Masanori Seki 2016-01-05
9176407 Toner and method for manufacturing toner particles Yuki Hasegawa, Yasuaki Murai, Masatake Tanaka, Takayuki Toyoda, Masashi Kawamura +1 more 2015-11-03
8962726 Compound having bisazo skeleton, pigment dispersant containing the compound, pigment composition, pigment dispersion, ink and resist composition for color filter Masatake Tanaka, Masashi Hirose, Takayuki Toyoda, Yasuaki Murai, Masashi Kawamura +1 more 2015-02-24
8936894 Magenta toner containing compound having AZO skeleton Takayuki Toyoda, Yasuaki Murai, Yuki Hasegawa, Masashi Kawamura, Taiki Watanabe +4 more 2015-01-20
8927187 Cyan toner containing compound having azo skeleton Yasuaki Murai, Takayuki Toyoda, Yuki Hasegawa, Masashi Kawamura, Taiki Watanabe +4 more 2015-01-06
8916318 Black toner containing compound having azo skeleton Yuki Hasegawa, Yasuaki Murai, Takayuki Toyoda, Masashi Kawamura, Masatake Tanaka +1 more 2014-12-23