Patents by Inventor Makoto Kamisaki

Makoto Kamisaki has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20220100125
    Abstract: A conveying device includes a conveying member that conveys a spray-receiving medium to be sprayed with pressure sensitive adhesive particles having a pressure-induced phase transition property, containing at least a binder resin, and having a sulfur content of 0.1 mass % or more and 0.5 mass % or less relative to an entirety of the pressure sensitive adhesive particles as measured by X-ray fluorescence; and a removing member that contacts the conveying member and removes the pressure sensitive adhesive particles remaining on the conveying member.
    Type: Application
    Filed: May 6, 2021
    Publication date: March 31, 2022
    Applicant: FUJIFILM Business Innovation Corp.
    Inventors: Yasuhisa MOROOKA, Naoki OTA, Masataka KURIBAYASHI, Takafumi KOIDE, Yusuke FUKUDA, Katsuyuki KITAJIMA, Makoto KAMISAKI, Tatsuhiro IGARASHI, Shota OSHIMA, Yuma KUBO
  • Publication number: 20220091522
    Abstract: A delivery device includes a container that contains pressure sensitive adhesive particles that contain at least a binder resin, have a sulfur content of 0.1 mass % or more and 0.5 mass % or less relative to a total of the pressure sensitive adhesive particles as measured by X-ray fluorescence, and have a pressure-induced phase transition property, the container having a shape of a cylinder having a spiral recessed or projecting portion on an inner peripheral surface thereof; and a transmitting unit to which a rotary drive force from a driving unit that rotates the container is transmitted, the transmitting unit being disposed in the container.
    Type: Application
    Filed: February 2, 2021
    Publication date: March 24, 2022
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Naoki OTA, Masataka KURIBAYASHI, Takafumi KOIDE, Yusuke FUKUDA, Katsuyuki KITAJIMA, Makoto KAMISAKI, Yasuhisa MOROOKA, Shota OSHIMA, Yuma KUBO, Tatsuhiro IGARASHI
  • Publication number: 20220091542
    Abstract: A particle conveying device includes a storage portion that stores pressure sensitive adhesive particles that contain at least a binder resin, have a pressure-induced phase transition property, and have a sulfur content in a range of 0.1 mass % or more and 0.5 mass % or less relative to the entire pressure sensitive adhesive particles as measured by X-ray fluorescence; and a conveying member that is disposed in the storage portion and rotates about a shaft that extends in one direction inside the storage portion to thereby convey the pressure sensitive adhesive particles in a direction along the shaft inside the storage portion.
    Type: Application
    Filed: February 8, 2021
    Publication date: March 24, 2022
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Yusuke FUKUDA, Naoki OTA, Masataka KURIBAYASHI, Takafumi KOIDE, Katsuyuki KITAJIMA, Makoto KAMISAKI, Tatsuhiro IGARASHI, Yasuhisa MOROOKA, Shota OSHIMA, Yuma KUBO
  • Patent number: 11112733
    Abstract: An image forming apparatus includes: a developing section that forms a toner image by developing an electrostatic latent image using toner. The toner satisfies the following relations: (ln?(T1)?ln?(T2))/(T1?T2)??0.14; (ln?(T2)?ln?(T3))/(T2?T3)??0.15; and (ln?(T1)?ln?(T2))/(T1?T2)<(ln?(T2)?ln?(T3))/(T2?T3), where ?(T1) represents a viscosity of the toner at 60° C., ?(T2) represents a viscosity of the toner at 90° C., and ?(T3) represents a viscosity of the toner at 130° C.).
    Type: Grant
    Filed: August 8, 2019
    Date of Patent: September 7, 2021
    Assignee: FUJIFILM Business Innovation Corp.
    Inventors: Jun Sekiya, Masataka Kuribayashi, Makoto Kamisaki, Shota Oshima
  • Patent number: 10831139
    Abstract: An image forming apparatus includes an image holding member; a charging unit; an electrostatic image forming unit; a developing unit that includes an electrostatic image developer that includes a toner; a transfer unit; and a fixing unit that fixes the toner image transferred on the surface of the recording medium to the recording medium. The fixing unit includes a fixing belt arranged to contact with the toner image transferred on the surface of the recording medium, a rotatable body arranged to be in contact with an outer peripheral surface of the fixing belt so as to form a contact region between the rotatable body and the fixing belt, the rotatable body transporting the recording medium in the contact region by rotating together with the fixing belt, and a heat source that heats the contact region formed between the fixing belt and the rotatable body.
    Type: Grant
    Filed: April 2, 2020
    Date of Patent: November 10, 2020
    Assignee: FUJI XEROX CO., LTD.
    Inventors: Shota Oshima, Takafumi Koide, Makoto Kamisaki
  • Patent number: 10795305
    Abstract: An image forming apparatus includes an image carrier; a charging section that charges a surface of the image carrier; an electrostatic charge image forming section that forms an electrostatic charge image on the charged surface of the image carrier; a developing section that has a container containing an electrostatic charge image developer and develops the electrostatic charge image formed on the surface of the image carrier into a toner image using the electrostatic charge image developer, the electrostatic charge image developer including toner for electrostatic charge image development, the toner containing toner particles and an external additive; a transfer section that transfers the toner image formed on the surface of the image carrier to a surface of a recording medium; a cleaning section that has a cleaning blade with which the cleaning section cleans the surface of the image carrier; and a lubricant supplying section that has a lubricant supplying member that supplies a lubricant to the contact por
    Type: Grant
    Filed: August 21, 2019
    Date of Patent: October 6, 2020
    Assignee: FUJI XEROX CO., LTD.
    Inventors: Masataka Kuribayashi, Makoto Kamisaki, Jun Sekiya, Shota Oshima
  • Publication number: 20200292969
    Abstract: An image forming apparatus includes: a developing section that forms a toner image by developing an electrostatic latent image using toner. The toner satisfies the following relations: (ln?(T1)?ln ?(T2))/(T1?T2)??0.14; (ln ?(T2)?ln ?(T3))/(T2?T3)??0.15; and (ln ?(T1)?ln ?(T2))/(T1?T2)<(ln ?(T2)?ln ?(T3))/(T2?T3), where ?(T1) represents a viscosity of the toner at 60° C., ?(T2) represents a viscosity of the toner at 90° C., and ?(T3) represents a viscosity of the toner at 130° C.).
    Type: Application
    Filed: August 8, 2019
    Publication date: September 17, 2020
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Jun SEKIYA, Masataka KURIBAYASHI, Makoto KAMISAKI, Shota OSHIMA
  • Publication number: 20200292982
    Abstract: An image forming apparatus includes an image carrier; a charging section that charges a surface of the image carrier; an electrostatic charge image forming section that forms an electrostatic charge image on the charged surface of the image carrier; a developing section that has a container containing an electrostatic charge image developer and develops the electrostatic charge image formed on the surface of the image carrier into a toner image using the electrostatic charge image developer, the electrostatic charge image developer including toner for electrostatic charge image development, the toner containing toner particles and an external additive; a transfer section that transfers the toner image formed on the surface of the image carrier to a surface of a recording medium; a cleaning section that has a cleaning blade with which the cleaning section cleans the surface of the image carrier; and a lubricant supplying section that has a lubricant supplying member that supplies a lubricant to the contact por
    Type: Application
    Filed: August 21, 2019
    Publication date: September 17, 2020
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Masataka KURIBAYASHI, Makoto Kamisaki, Jun Sekiya, Shota Oshima
  • Publication number: 20200292983
    Abstract: An image forming apparatus includes: an image holding member; a charging unit that charges a surface of the image holding member; an electrostatic image forming unit that forms an electrostatic image on the charged surface of the image holding member; a developing unit that houses a toner for electrostatic image development and develops the electrostatic image formed on the surface of the image holding member with the toner to thereby form a toner image; a transfer unit that transfers the toner image formed on the surface of the image holding member onto a surface of a recording medium; a cleaning unit that includes a cleaning blade and cleans the surface of the image holding member; and a fixing unit that fixes the toner image transferred onto the surface of the recording medium. The cleaning blade has a contact portion that contacts the surface of the image holding member, the contact portion having a JIS-A hardness of from 90° to 130° inclusive.
    Type: Application
    Filed: August 29, 2019
    Publication date: September 17, 2020
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Shota OSHIMA, Masataka KURIBAYASHI, Makoto KAMISAKI, Jun SEKIYA
  • Patent number: 10719041
    Abstract: An image forming apparatus includes an image holding member, a charging unit that charges the surface of the image holding member, an electrostatic charge image forming unit that forms an electrostatic charge image on the charged surface of the image holding member, a developing unit that includes a developer containing toner particles containing a release agent having a melting temperature ranging from 60° C. to 100° C.
    Type: Grant
    Filed: March 25, 2019
    Date of Patent: July 21, 2020
    Assignee: FUJI XEROX CO., LTD.
    Inventors: Tatsuhiro Igarashi, Naoki Ota, Yusuke Fukuda, Makoto Kamisaki, Yasuhisa Morooka, Jun Sekiya, Teppei Yawada, Masataka Kuribayashi, Takafumi Koide, Katsuyuki Kitajima, Shota Oshima
  • Publication number: 20200064760
    Abstract: An image forming apparatus includes an image holding member, a charging unit that charges the surface of the image holding member, an electrostatic charge image forming unit that forms an electrostatic charge image on the charged surface of the image holding member, a developing unit that includes a developer containing toner particles containing a release agent having a melting temperature ranging from 60° C. to 100° C.
    Type: Application
    Filed: March 25, 2019
    Publication date: February 27, 2020
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Tatsuhiro IGARASHI, Naoki OTA, Yusuke FUKUDA, Makoto KAMISAKI, Yasuhisa MOROOKA, Jun SEKIYA, Teppei YAWADA, Masataka KURIBAYASHI, Takafumi KOIDE, Katsuyuki KITAJIMA, Shota OSHIMA
  • Patent number: 10539895
    Abstract: An image forming apparatus includes an image carrier that includes a conductive substrate, and a photosensitive layer and a surface protection layer; a developing device that includes an electrostatic image developer containing a toner, and develops the electrostatic image to form a toner image. The toner contains an amorphous polyester resin and has a weight average molecular weight Mw in a range of from 25,000 to 60,000, and a ratio of the weight average molecular weight Mw to a number average molecular weight Mn (Mw/Mn) is in a range of from 5 to 10. In the toner, a ratio of an absorbance for a wavelength of 1500 cm?1 to an absorbance for a wavelength of 720 cm?1 is 0.6 or less, and a ratio of an absorbance for a wavelength of 820 cm?1 to the absorbance for a wavelength of 720 cm?1 is 0.4 or less.
    Type: Grant
    Filed: April 3, 2018
    Date of Patent: January 21, 2020
    Assignee: FUJI XEROX CO., LTD.
    Inventors: Makoto Kamisaki, Naoki Ota, Tatsuhiro Igarashi, Yasuhisa Morooka, Jun Sekiya
  • Patent number: 10495995
    Abstract: An image forming apparatus includes an image holding member; a charging unit; an electrostatic image forming unit; a developing unit; a transfer unit; and a fixing unit that fixes the toner image on the recording medium. The toner has an amorphous polyester resin and has a weight-average molecular weight Mw in a range of 25,000 to 60,000, a ratio Mw/Mn is within a range of 5 to 10, a ratio of an absorbance at a wavenumber of 1500 cm?1 to an absorbance at a wavenumber of 720 cm?1 is 0.6 or less, and a ratio of an absorbance at a wavenumber of 820 cm?1 to the absorbance at a wavenumber of 720 cm?1 is 0.4 or less. The fixing unit includes a heat roll having an elastic component, an endless belt and a pressure pad that is disposed on an inner side of the endless belt.
    Type: Grant
    Filed: August 27, 2018
    Date of Patent: December 3, 2019
    Assignee: FUJI XEROX CO., LTD.
    Inventors: Yasuhisa Morooka, Naoki Ota, Makoto Kamisaki, Tatsuhiro Igarashi, Jun Sekiya
  • Publication number: 20190294065
    Abstract: An image forming apparatus includes an image holding member; a charging unit; an electrostatic image forming unit; a developing unit; a transfer unit; and a fixing unit that fixes the toner image on the recording medium. The toner has an amorphous polyester resin and has a weight-average molecular weight Mw in a range of 25,000 to 60,000, a ratio Mw/Mn is within a range of 5 to 10, a ratio of an absorbance at a wavenumber of 1500 cm?1 to an absorbance at a wavenumber of 720 cm?1 is 0.6 or less, and a ratio of an absorbance at a wavenumber of 820 cm?1 to the absorbance at a wavenumber of 720 cm?1 is 0.4 or less. The fixing unit includes a heat roll having an elastic component, an endless belt and a pressure pad that is disposed on an inner side of the endless belt.
    Type: Application
    Filed: August 27, 2018
    Publication date: September 26, 2019
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Yasuhisa MOROOKA, Naoki OTA, Makoto KAMISAKI, Tatsuhiro IGARASHI, Jun SEKIYA
  • Publication number: 20190286045
    Abstract: An image forming apparatus includes an image holding member, a charging unit, an electrostatic charge image forming unit, a developing unit, a transfer unit, and a cleaning unit having a cleaning blade that is in contact with the surface of the image holding member to clean the surface of the image holding member, wherein in the cleaning device, a variation in a load applied by the cleaning blade to the image holding member in a slide test is 1.5 gf/mm or less, wherein in the slide test, an image holding member which has a diameter of 30 mm and with which the cleaning blade is in contact at a contact angle of 23° and a pressing pressure of 4.0 gf/mm is rotated 100,000 times at a rotational speed of 175 mm/sec to slide the cleaning blade.
    Type: Application
    Filed: August 23, 2018
    Publication date: September 19, 2019
    Applicant: FUJI XEROX CO.,LTD.
    Inventors: Masataka KURIBAYASHI, Takafumi KOIDE, Yusuke FUKUDA, Katsuyuki KITAJIMA, Makoto KAMISAKI, Teppei YAWADA, Shota OSHIMA
  • Patent number: 10394179
    Abstract: An image forming apparatus includes an image holding member, a charging unit, an electrostatic charge image forming unit, a developing unit, a transfer unit, and a cleaning unit having a cleaning blade that is in contact with the surface of the image holding member to clean the surface of the image holding member, wherein in the cleaning device, a variation in a load applied by the cleaning blade to the image holding member in a slide test is 1.5 gf/mm or less, wherein in the slide test, an image holding member which has a diameter of 30 mm and with which the cleaning blade is in contact at a contact angle of 23° and a pressing pressure of 4.0 gf/mm is rotated 100,000 times at a rotational speed of 175 mm/sec to slide the cleaning blade.
    Type: Grant
    Filed: August 23, 2018
    Date of Patent: August 27, 2019
    Assignee: FUJI XEROX CO., LTD.
    Inventors: Masataka Kuribayashi, Takafumi Koide, Yusuke Fukuda, Katsuyuki Kitajima, Makoto Kamisaki, Teppei Yawada, Shota Oshima
  • Patent number: 10338488
    Abstract: An image forming apparatus includes an image holding member, a charging device, an electrostatic charge image forming device, a developing device having a toner, a transfer device, and a fixing device, wherein the fixing device includes a fixing belt, a rotational member, and a heater; the toner contains an amorphous polyester resin as a binder resin; and the toner has a weight average molecular weight Mw and a number average molecular weight Mn, Mw is from 25000 to 60000, and Mw/Mn is from 5 to 10, and has an infrared absorption spectrometry, the ratio of absorbance for a wavelength of 1500 cm?1 to absorbance for a wavelength of 720 cm?1 is 0.6 or less, and the ratio of absorbance for a wavelength of 820 cm?1 to absorbance for a wavelength of 720 cm?1 is 0.4 or less.
    Type: Grant
    Filed: March 8, 2018
    Date of Patent: July 2, 2019
    Assignee: FUJI XEROX CO., LTD.
    Inventors: Tatsuhiro Igarashi, Manabu Furuki, Naoki Ota, Makoto Kamisaki, Yasuhisa Morooka, Jun Sekiya
  • Patent number: 10268153
    Abstract: An image forming apparatus includes an image forming unit including an image carrier, a developing device that includes a developer containing a toner, and a cleaning device including a blade; and a transfer device. The toner contains toner particles having a volume-average particle size of 3 ?m or more and 5 ?m or less, a spherical inorganic external additive having a number-average particle size of 80 nm to 200 nm, and an organic component. In the cleaning device, an external additive residue in or near a contact region between the image carrier and the blade contains the organic component and an inorganic component, the area ratio of the organic component to the inorganic component is 3/7 or more and 7/3 or less, and the area ratio of the inorganic component that is spherical to the external additive residue is 30% or more.
    Type: Grant
    Filed: July 14, 2017
    Date of Patent: April 23, 2019
    Assignee: FUJI XEROX CO., LTD.
    Inventors: Makoto Kamisaki, Manabu Furuki, Naoki Ota, Tatsuhiro Igarashi, Yasuhisa Morooka, Jun Sekiya
  • Publication number: 20190094730
    Abstract: An image forming apparatus includes an image carrier that includes a conductive substrate, and a photosensitive layer and a surface protection layer; a developing device that includes an electrostatic image developer containing a toner, and develops the electrostatic image to form a toner image. The toner contains an amorphous polyester resin and has a weight average molecular weight Mw in a range of from 25,000 to 60,000, and a ratio of the weight average molecular weight Mw to a number average molecular weight Mn (Mw/Mn) is in a range of from 5 to 10. In the toner, a ratio of an absorbance for a wavelength of 1500 cm?1 to an absorbance for a wavelength of 720 cm?1 is 0.6 or less, and a ratio of an absorbance for a wavelength of 820 cm?1 to the absorbance for a wavelength of 720 cm?1 is 0.4 or less.
    Type: Application
    Filed: April 3, 2018
    Publication date: March 28, 2019
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Makoto KAMISAKI, Naoki OTA, Tatsuhiro IGARASHI, Yasuhisa MOROOKA, Jun SEKIYA
  • Publication number: 20190094731
    Abstract: An image forming apparatus includes an image holding member, a charging device, an electrostatic charge image forming device, a developing device having a toner, a transfer device, and a fixing device, wherein the fixing device includes a fixing belt, a rotational member, and a heater; the toner contains an amorphous polyester resin as a binder resin; and the toner has a weight average molecular weight Mw and a number average molecular weight Mn, Mw is from 25000 to 60000, and Mw/Mn is from 5 to 10, and has an infrared absorption spectrometry, the ratio of absorbance for a wavelength of 1500 cm?1 to absorbance for a wavelength of 720 cm?1 is 0.6 or less, and the ratio of absorbance for a wavelength of 820 cm?1 to absorbance for a wavelength of 720 cm?1 is 0.4 or less.
    Type: Application
    Filed: March 8, 2018
    Publication date: March 28, 2019
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Tatsuhiro IGARASHI, Manabu FURUKI, Naoki OTA, Makoto KAMISAKI, Yasuhisa MOROOKA, Jun SEKIYA