Patents by Inventor Eiichi Imai

Eiichi Imai 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: 20190336396
    Abstract: A tablet has a hole that can retain an active pharmaceutical ingredient (API) in a side surface. A tablet production device has a second conveyance disk that conveys the tablet while sucking/supporting the side surface of the tablet, medicinal agent supply device ejects the API into the holes and an inkjet head that prints on the front and back surfaces of the tablets. The tablets are conveyed with the side surface thereof sucked by the second conveyance disk, the medicinal agent supply device adds the API into the holes and the inkjet head prints on the front and back surfaces at the same time.
    Type: Application
    Filed: January 12, 2018
    Publication date: November 7, 2019
    Inventors: Kiyoshi IMAI, Toshiaki HONDA, Kazuhisa TAKEDA, Eiichi HACHIYA
  • Publication number: 20190193390
    Abstract: A tablet mark printing method of printing a mark at a splitting position of a tablet having a splitting line on a first surface and not having a splitting line on a second surface, the method including performing splitting line position recognition on the first surface of the tablet and printing the mark at a position corresponding to the splitting position at least on the second surface.
    Type: Application
    Filed: March 17, 2017
    Publication date: June 27, 2019
    Inventors: Kiyoshi Imai, Eiichi Hachiya, Akira Mouri, Mutsuhito Yoneta
  • Publication number: 20190183731
    Abstract: A solid pharmaceutical preparation printing method in which printing is performed on successively-supplied solid pharmaceutical preparations by discharging ink from a nozzle of a printing device based on printing data, the printing data including standard printing data and rotated printing data created by rotating the standard printing data at a selected rotation angle, and the printing based on the rotated printing data being performed in addition to the printing based on the standard printing data.
    Type: Application
    Filed: March 13, 2017
    Publication date: June 20, 2019
    Inventors: Kiyoshi IMAI, Takerou ADACHI, Takayoshi HOSHINO, Eiichi HACHIYA
  • Patent number: 10306078
    Abstract: A monitoring apparatus is configured to acquire, from a multi-function apparatus including a first device and a second device, first device information regarding the first device and being a collection target and second device information regarding the second device and being a collection target, the monitoring apparatus including: a status information acquisition unit configured to acquire from the first device, at a monitoring timing of the multi-function apparatus, status information denoting a state of the first device; and a device information acquisition unit configured to acquire the first device information from the first device and the second device information from the second device, wherein the device information acquisition unit does not perform acquisition of the second device information from the second device when the status information acquired by the status information acquisition unit is information denoting a sleep mode of the first device.
    Type: Grant
    Filed: October 9, 2017
    Date of Patent: May 28, 2019
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Toshie Imai, Ryosuke Kakio, Tomoki Takahashi, Eiichi Harada, Tetsuya Wakasa, Hiroyasu Ogata, Tomonobu Ozawa
  • Patent number: 5802428
    Abstract: An image forming apparatus includes a member to be charged for carrying an electrostatic latent image; a contact charging means for contact charging the member to be charged and a developing means for developing the latent image. The developing means includes a developer having a magnetic toner and fine powder treated with a silicone oil or varnish-treating agent, wherein the magnetic toner particles include a binder resin and contain from 10-70 wt. % of magnetic fine powder. An image forming method includes the steps of contact charging, latent image forming and developing with a developer having the binder resin, 10 to 70 wt. % magnetic fine powder and fine powder treated with a silicone oil or varnish-treating agent.
    Type: Grant
    Filed: April 18, 1995
    Date of Patent: September 1, 1998
    Assignee: Canon Kabushiki Kaisha
    Inventors: Manabu Ohno, Hisayuki Ochi, Tetsuhito Kuwashima, Hiroyuki Suematsu, Eiichi Imai, Tsuyoshi Takiguchi, Koichi Tomiyama, Tsutomu Kukimoto, Hiroshi Yusa
  • Patent number: 5534981
    Abstract: An image forming apparatus includes a member to be charged for carrying an electrostatic image, a contact-charging means for charging the member to be charged in contact with the member to be charged, and a developing means for developing the electrostatic image carried on the member to be charged. The developing means includes a developer for developing the electrostatic image comprising a toner and hydrophobic inorganic fine powder. The hydrophobic fine powder has a hydrophobicity of 60% or higher and the toner has a volume average particle size of 4-8 microns. The hydrophobic inorganic fine powder not only improves the fluidity of the developer and adjusts the chargeability of the developer but also prevents difficulties due to interaction between the member to be charged and the contact charging means in the presence of residual developer, such as damages of the member to be charged and toner-sticking onto the member to be charged.
    Type: Grant
    Filed: August 19, 1993
    Date of Patent: July 9, 1996
    Assignee: Canon Kabushiki Kaisha
    Inventors: Manabu Ohno, Hisayuki Ochi, Tetsuhito Kuwashima, Hiroyuki Suematsu, Eiichi Imai, Tsuyoshi Takiguchi, Koichi Tomiyama, Tsutomu Kukimoto, Hiroshi Yusa
  • Patent number: 5510223
    Abstract: An image forming method, including the steps of: developing an electrostatic image formed on an electrostatic image-bearing member with a developer to form thereon thereon a developed image, the developer containing 100 wt. parts of a toner and 0.05 to 3 wt. parts of fine powder treated with a silicone oil or silicone varnish; and transferring the developed image on the electrostatic image-bearing member to a transfer material while causing a transfer device, such as a roller or belt to contact the electrostatic image-bearing member by the medium of the transfer material under a line pressure of 3 g/cm or higher.
    Type: Grant
    Filed: December 30, 1994
    Date of Patent: April 23, 1996
    Assignee: Canon Kabushiki Kaisha
    Inventors: Tsutomu Kukimoto, Hiroshi Yusa, Koichi Tomiyama, Tsuyoshi Takiguchi, Eiichi Imai, Tetsuya Kuribayashi, Hisayuki Ochi, Hiroyuki Suematsu
  • Patent number: 5392103
    Abstract: An image forming method, including the steps of: developing an electrostatic image formed on an electrostatic image-bearing member with a developer to form thereon thereon a developed image, the developer containing 100 wt. parts of a toner and 0.05 to 3 wt. parts of fine powder treated with a silicone oil or silicone varnish; and transferring the developed image on the electrostatic image-bearing member to a transfer material while causing a transfer device, such as a roller or belt to contact the electrostatic image-bearing member by the medium of the transfer material under a line pressure of 3 g/cm or higher.
    Type: Grant
    Filed: November 4, 1993
    Date of Patent: February 21, 1995
    Assignee: Canon Kabushiki Kaisha
    Inventors: Tsutomu Kukimoto, Hiroshi Yusa, Koichi Tomiyama, Tsuyoshi Takiguchi, Eiichi Imai, Tetsuya Kuribayashi, Hisayuki Ochi, Hiroyuki Suematsu
  • Patent number: 5333059
    Abstract: The present invention provide a toner for developing an electrostatic image. The toner comprises a binder resin and a coloring agent. The binder resin comprises a styrene type binder resin. The amount of an aldehyde contained in the binder resin is not more than 0.005% by weight based on the weight of the toner. The binder resin is produced by a process comprising the steps of preparing a monomer composition comprising a polymerizable monomer containing at least not less than 50% by weight of a styrene monomer, and a polymerization initiator, and subjecting said monomer composition to suspension polymerization in an aqueous medium having dissolved oxygen in an amount of not more than 2.5 mg/lit to form a styrene polymer or copolymer containing an aldehyde monomer in an amount of not more than 0.01% by weight.
    Type: Grant
    Filed: March 25, 1992
    Date of Patent: July 26, 1994
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yoshihiko Hyosu, Seiichi Takagi, Hiroyuki Suematsu, Manabu Ohno, Tetsuhito Kuwashima, Eiichi Imai, Yoshinobu Nagai
  • Patent number: 5307122
    Abstract: An image forming apparatus includes a member to be charged for carrying an electrostatic image, a contact-charging means for charging the member to be charged in contact with the member to be charged, and a developing means for developing the electrostatic image carried on the member to be charged. The developing means includes a developer for developing the electrostatic image comprising a toner and hydrophobic inorganic fine powder. The hydrophobic inorganic fine powder not only improves the fluidity of the developer and adjusts the chargeability of the developer but also prevents difficulties due to interaction between the member to be charged and the contact charging means in the presence of residual developer, such as damages of the member to be charged and toner-sticking onto the member to be charged.
    Type: Grant
    Filed: July 26, 1990
    Date of Patent: April 26, 1994
    Assignee: Canon Kabushiki Kaisha
    Inventors: Manabu Ohno, Hisayuki Ochi, Tetsuhito Kuwashima, Hiroyuki Suematsu, Eiichi Imai, Tsuyoshi Takiguchi, Koichi Tomiyama, Tsutomu Kukimoto, Hiroshi Yusa
  • Patent number: 5270770
    Abstract: An image forming method, including the steps of: developing an electrostatic image formed on an electrostatic image-bearing member with a developer to form thereon thereon a developed image, the developer containing 100 wt. parts of a toner and 0.05 to 3 wt. parts of fine powder treated with a silicone oil or silicone varnish; and transferring the developed image on the electrostatic image-bearing member to a transfer material while causing a transfer device, such as a roller or belt, to contact the electrostatic image-bearing member by the medium of the transfer material under a line pressure of 3 g/cm or higher.
    Type: Grant
    Filed: June 25, 1992
    Date of Patent: December 14, 1993
    Assignee: Canon Kabushiki Kaisha
    Inventors: Tsutomu Kukimoto, Hiroshi Yusa, Koichi Tomiyama, Tsuyoshi Takuguchi, Eiichi Imai, Tetsuya Kuribayashi, Hisayuki Ochi, Hiroyuki Suematsu
  • Patent number: 5262267
    Abstract: A magnetic developer for developing an electrostatic latent image, including hydrophobic silica fine powder and an insulating magnetic toner comprising at least a binder resin and a magnetic material comprising spherical magnetic particles; wherein 0.16 to 1.6 wt. parts of the hydrophobic silica fine powder is mixed with 100 wt. parts of the insulating magnetic toner; the developer contains 17-60% by number of magnetic toner particles having a particle size of 5 microns or smaller, 5-50% by number of magnetic toner particles having a particle size of 6.35-10.08 microns, and 2.0% by volume or less of magnetic toner particles having a particle size of 12.7 microns or larger.
    Type: Grant
    Filed: March 9, 1992
    Date of Patent: November 16, 1993
    Assignee: Canon Kabushiki Kaisha
    Inventors: Tsuyoshi Takiguchi, Tetsuya Kuribayashi, Koichi Tomiyama, Tsutomu Kukimoto, Hiroshi Yusa, Eiichi Imai
  • Patent number: 5210617
    Abstract: A developer for developing electrostatic latent images is constituted by a toner, and negatively chargeable spherical resin particles having an average particle size of 0.03-1.0 micron and a volume resistivity of 10.sup.6 -10.sup.12 ohm.cm. The toner may comprise toner particles and hydrophobic inorganic fine powder, which is generally used in a larger amount than the negatively chargeable spherical resin particles. The negatively chargeable spherical resin particles function to provide a toner image which is faithful to an electrostatic latent image formed on a photosensitive member while preventing toner-sticking onto the photosensitive member preferably in combination with a contact-charging means for charging the photosensitive member.
    Type: Grant
    Filed: June 5, 1992
    Date of Patent: May 11, 1993
    Assignee: Canon Kabushiki Kaisha
    Inventors: Koichi Tomiyama, Tsuyoshi Takiguchi, Tsutomu Kukimoto, Hiroshi Yusa, Eiichi Imai
  • Patent number: 5157442
    Abstract: An image forming apparatus has a charging device for charging a photosensitive member containing an organic photoconducter, an exposure device, a developing device including a developer, a transfer device and a cleaning device. The photosensitive member employs an organic photoconductor and a polycarbonate resin layer which forms the surface of the photosensitive member. The developer device has a sleeve with a thin layer of an electrical coating material containing dispersed carbon particles. The developer contains insulating magnetic toner particles of relatively small particle size formed from a styrene-acrylic type copolymer or a polyester resin and a magnetic powder.
    Type: Grant
    Filed: April 30, 1990
    Date of Patent: October 20, 1992
    Assignee: Canon Kabushiki Kaisha
    Inventors: Koichi Tanigawa, Akihiko Takeuchi, Yasumasa Otsuka, Hiroto Hasegawa, Toshiyuki Yoshihara, Takayasu Yuminamochi, Eiichi Imai
  • Patent number: 5139914
    Abstract: A developer for developing electrostatic latent images is constituted by a toner, and negatively chargeable spherical resin particles having an average particle size of 0.03-1.0 micron and a volume resistivity of 10.sup.6 -10.sup.12 ohm.cm. The toner may comprise toner particles and hydrophobic inorganic fine powder, which is generally used in a larger amount than the negatively charageable spherical resin particles. The negatively chargeable spherical resin particles function to provide a toner image which is faithful to an electrostatic latent image formed on a photosensitive member while preventing toner-sticking onto the photosensitive member preferably in combination with a contact-charging means for charging the photosensitive member.
    Type: Grant
    Filed: July 26, 1990
    Date of Patent: August 18, 1992
    Assignee: Canon Kabushiki Kaisha
    Inventors: Koichi Tomiyama, Tsuyoshi Takiguchi, Tsutomu Kukimoto, Hiroshi Yusa, Eiichi Imai
  • Patent number: 5137796
    Abstract: A magnetic developer for developing an electrostatic latent image, including hydrophobic silica fine powder and an insulating magnetic toner comprising at least a binder resin and a magnetic material comprising spherical magnetic particles; wherein 0.16 to 1.6 wt. parts of the hydrophobic silica fine powder is mixed with 100 wt. parts of the insulating magnetic toner; the developer contains 17-60% by number of magnetic toner particles having a particles size of 5 microns of smaller, 5-50% by number of magnetic toner particles having a particle size of 6.35-10.08 microns, and 2.0% by volume or less of magnetic toner particles having a particle size of 12.7 microns or larger.
    Type: Grant
    Filed: April 25, 1990
    Date of Patent: August 11, 1992
    Assignee: Canon Kabushiki Kaisha
    Inventors: Tsuyoshi Takiguchi, Tetsuya Kuribayashi, Koichi Tomiyama, Tsutomu Kukimoto, Hiroshi Yusa, Eiichi Imai
  • Patent number: 5126224
    Abstract: The present invention provide a toner for developing an electrostatic image. The toner comprises a binder resin and a coloring agent. The binder resin comprises a styrene type binder resin. The amount of an aldehyde contained in the binder resin is not more than 0.005% by weight based on the weight of the toner. The binder resin is produced by a process comprising the steps of preparing a monomer composition comprising a polymerizable monomer containing at least not less than 50% by weight of a styrene monomer, and a polymerization initiator, and subjecting said monomer composition to suspension polymerization in an aqueous medium having dissolved oxygen in an amount of not more than 2.5 mg/lit to form a styrene polymer or copolymer containing an aldehyde monomer in an amount of not more than 0.01% by weight.
    Type: Grant
    Filed: September 14, 1990
    Date of Patent: June 30, 1992
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yoshihiko Hyosu, Seiichi Takagi, Hiroyuki Suematsu, Manabu Ohno, Tetsuhito Kuwashima, Eiichi Imai, Yoshinobu Nagai
  • Patent number: 5112714
    Abstract: A dry developer for developing electrostatic images comprises a) toner particles comprising 100 parts by weight of a binder resin and 1-20 parts by weight of polyalkylene having a ratio of weight average molecular weight to number average molecular weight of 2.0-10.0 and Z average molecular weight determined by gel permeation chromatography of 10,000-200,000, and containing 5-60% by weight of a component soluble in n-hexane at boiling point, kinetic friction coefficient of the toner particles being 0.20-0.50, and b) non-magnetic inorganic fine powders having BET specific surface area according to a nitrogen adsorbing method of 0.5-500 m.sup.2 /g.An image forming method comprises using the dry developer to develop electrostatic latent images on a photosensitive member having a surface hardness of 8 g or more, transferring the developed images to a receiving member, and removing the toner particles remaining on the photosensitive member by a cleaning means accompanying abrasion.
    Type: Grant
    Filed: November 19, 1990
    Date of Patent: May 12, 1992
    Assignee: Canon Kabushiki Kaisha
    Inventors: Eiichi Imai, Kiichiro Sakashita, Seiichi Takagi, Tsutomu Kukimoto
  • Patent number: 5071727
    Abstract: A triboelectrically chargeable composition for use in development of electrostatic latent images. The composition comprises a positively chargeable compound and a base material carrying the positively chargeable compound. The positively chargeable compound has an oxidation potential of 750 mV or below, a whiteness W of 0.5 or above and an average particle size of 5.0 microns or smaller. The composition is embodied typically as a positively chargeable toner and also as a charge-imparting material for charging a toner. The positively chargeable toner is especially adapted for development of digital latent images, e.g., as produced by laser beam scanning.
    Type: Grant
    Filed: July 11, 1990
    Date of Patent: December 10, 1991
    Assignee: Canon Kabushiki Kaisha
    Inventors: Takeshi Ikeda, Eiichi Imai, Hiroshi Fukumoto, Katsuhiko Tanaka, Koshi Suematsu, Motoo Urawa, Masanori Takenouchi
  • Patent number: 4845007
    Abstract: A dispersion stabilizer having a nitrogen-containing organic group and a water-soluble acidic substance are added to an aqueous medium. Into the aqueous medium, a monomer composition comprising at least a polymerizable monomer, an anionic polymer, a polymerization initiator and a colorant is added and dispersed therein into a prescribed particle size. The particles of the monomer composition are subjected to suspension polymerization. The resultant toner is caused to have a sharp particle size distribution and an improved anti-blocking property because of the combined effects of the dispersion stabilizer and the acidic substance contained in the aqueous medium and the anionic polymer contained in the monomer composition.
    Type: Grant
    Filed: December 23, 1986
    Date of Patent: July 4, 1989
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yoshihiko Hyosu, Hiromi Mori, Eiichi Imai