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Kaname Watariguchi patents

Recent patents with Kaname Watariguchi listed as an inventor - additional entries may be under other spellings.


Kaname Watariguchi - Related organizations: Canon Kabushiki Kaisha patents

Electrophotographic photosensitive member, process cartridge and electrophotographic apparatus

12/11/14 - 20140363759 - In order to provide an electrophotographic photosensitive member with which a ghost is suppressed even under a low temperature and low humidity environment, and a process cartridge and an electrophotographic apparatus having the electrophotographic photosensitive member, the electrophotographic photosensitive member has a support, an undercoat layer formed on the support,
Inventors: Kaname Watariguchi, Takeshi Murakami, Masataka Kawahara, Masato Tanaka, Akira Yoshida

Electrophotographic photosensitive member, method for manufacturing electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus

10/30/14 - 20140322637 - In an electrophotographic photosensitive member including a charge-generating layer, the charge-generating layer has a matrix-domain structure; in the matrix-domain structure, the domain contains a charge-generating substance, and the matrix contains a binder resin and a fluoranthene compound.
Inventors: Junpei Kuno, Takeshi Murakami, Tsutomu Nishida, Masataka Kawahara, Kaname Watariguchi

Electrophotographic photosensitive member, process cartridge, electrophotographic apparatus, and gallium phthalocyanine crystal

10/16/14 - 20140308606 - Provided is an electrophotographic photosensitive member, a process cartridge and an electrophotographic apparatus each having the electrophotographic photosensitive member that can output an image having less image defects due to a ghost phenomenon not only under a normal-temperature, normal-humidity environment but also under a low-temperature, low-humidity environment as a particularly
Inventors: Masato Tanaka, Masataka Kawahara, Kaname Watariguchi, Takeshi Murakami, Akira Yoshida

Electrophotographic photosensitive member, process cartridge and electrophotographic apparatus

05/22/14 - 20140141362 - An electrophotographic photosensitive member includes a support, an undercoat layer formed on the support, and a photosensitive layer which is formed on the undercoat layer and contains a charge generating substance and a hole transporting substance. The undercoat layer contains a specific amine compound, titanium oxide crystal particles having an
Inventors: Kaname Watariguchi, Masato Tanaka, Masataka Kawahara, Akira Yoshida

Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus

03/06/14 - 20140065531 - A charge-generating layer of an electrophotographic photosensitive member includes a phthalocyanine pigment and a specific tricyanoethylene compound. Alternatively, the charge-generating layer and/or an undercoat layer of the electrophotographic photosensitive member includes a specific tricyanoethylene compound, and the charge-generating layer includes the phthalocyanine pigment.
Inventors: Tsutomu Nishida, Junpei Kuno, Masataka Kawahara, Kaname Watariguchi, Masato Tanaka

Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus

03/06/14 - 20140065530 - A photosensitive layer of an electrophotographic photosensitive member includes a phthalocyanine pigment and a specific dicyanoethylene compound. Alternatively, the photosensitive layer and/or an undercoat layer of the electrophotographic photosensitive member include a specific dicyanoethylene compound, and the photosensitive layer includes the phthalocyanine pigment.
Inventors: Tsutomu Nishida, Junpei Kuno, Kaname Watariguchi, Masataka Kawahara, Masato Tanaka

Method of producing gallium phthalocyanine crystal and method of producing electrophotographic photosensitive member using the method of producing gallium phthalocyanine crystal

05/30/13 - 20130137032 - Provided is a method of producing an electrophotographic photosensitive member having improved sensitivity and capable of outputting an image having less image defects due to a ghost phenomenon not only under a normal-temperature, normal-humidity environment but also under a low-temperature, low-humidity environment as a particularly severe condition. The method of
Inventors: Masato Tanaka, Masataka Kawahara, Kaname Watariguchi, Takeshi Murakami, Akira Yoshida

Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus

05/30/13 - 20130137026 - An electrophotographic photosensitive member includes a support, a charge-generating layer disposed on the support, and a charge-transporting layer disposed on the charge-generating layer, in which the charge-generating layer contains a charge-generating substance and a compound represented by the formula (1). A process cartridge includes the electrophotographic photosensitive member described above.
Inventors: Takeshi Murakami, Masataka Kawahara, Kaname Watariguchi, Masato Tanaka, Akira Yoshida

Electrophotographic photosensitive member, method of producing phthalocyanine crystal, method of producing electrophotographic photosensitive member, process cartridge, electrophotographic apparatus, and phthalocyanine crystal

05/30/13 - 20130137025 - Provided is an electrophotographic photosensitive member including a support and a photosensitive layer formed on the support, in which the photosensitive layer includes a phthalocyanine crystal containing a compound satisfying the following formulae (A) and (B) in itself: 8.9≦δP≦10.7 (A) and −3.2≦L≦−1.5 (B) (in the formula (A), δP represents a
Inventors: Masataka Kawahara, Masato Tanaka, Kaname Watariguchi, Takeshi Murakami, Akira Yoshida

Electrophotographic photosensitive member, process cartridge and electrophotographic apparatus

05/30/13 - 20130137023 - In order to provide an electrophotographic photosensitive member with which a ghost is suppressed even under a low temperature and low humidity environment, and a process cartridge and an electrophotographic apparatus having the electrophotographic photosensitive member, the electrophotographic photosensitive member has a support, an undercoat layer formed on the support,
Inventors: Kaname Watariguchi, Takeshi Murakami, Masataka Kawahara, Masato Tanaka, Akira Yoshida


### Kaname Watariguchi patent invention listings

The bibliographic references displayed about Kaname Watariguchi's patents are for a recent sample of Kaname Watariguchi's publicly published patent applications. The inventor/author may have additional bibliographic citations listed at the USPTO.gov. FreshPatents.com is not associated or affiliated in any way with the author/inventor or the United States Patent/Trademark Office but is providing this non-comprehensive sample listing for educational and research purposes using public bibliographic data published and disseminated from the United States Patent/Trademark Office public datafeed. This information is also available for free on the USPTO.gov website. If Kaname Watariguchi filed recent patent applications under another name, spelling or location then those applications could be listed on an alternate page. If no bibliographic references are listed here, it is possible there are no recent filings or there is a technical issue with the listing--in that case, we recommend doing a search on the USPTO.gov website.

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