Patents by Inventor Mitsuru Tanemoto

Mitsuru Tanemoto 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: 20220288928
    Abstract: An inkjet printing apparatus for printing on a printing medium by dispensing inks thereto. The apparatus includes a transport device; print heads for performing printing by dispensing the inks to the printing medium; and a drying section including a heat source for generating heat for drying the inks dispensed to the printing medium, and a shutter switchable between an open state and a closed state. In the open state, a drying amount of heat is applied for drying the inks dispensed to the printing medium, and in the closed state, the heat from the heat source is applied in a minute amount of heat smaller than the drying amount of heat. A controller switches the shutter to the open state when a transporting speed of the printing medium is faster than a predetermined threshold, and switches the shutter to the closed state when the transporting speed of the printing medium becomes equal to or less than the predetermined threshold.
    Type: Application
    Filed: January 28, 2022
    Publication date: September 15, 2022
    Inventors: Takahiro UDA, Mitsuru TANEMOTO, Yuki TSUTSUI, Masaki ERA
  • Publication number: 20220274429
    Abstract: A printing apparatus for printing on printing media in a continuous business form. The apparatus includes a transport device, a detector for detecting a splice portion between the printing media transported by the transport device, a printing section for printing on the printing media transported by the transport device, a drying section for drying at a drying temperature the printing media printed in the printing section and transported by the transport device, and a controller for operating the transport device to reduce tension applied to the splice portion at least while the splice portion is located in the drying section.
    Type: Application
    Filed: January 28, 2022
    Publication date: September 1, 2022
    Inventors: Shoji Kakimoto, Mitsuru Tanemoto, Hideaki Onishi
  • Publication number: 20220063301
    Abstract: Disclosed is a printing apparatus in which web paper is transported to a printing face contact roller in a swirling form while a direction thereof is turned by first to fourth turning rollers. Heating units are arranged so as to face a printing face of the web paper between the two first and second turning rollers, between the two third and fourth turning rollers, and between the fourth turning roller and the printing face contact roller individually. Such arrangement can achieve a compact drying mechanism. The heating units each directly heat inks on the printing face, and thus do not overheat the web paper. Moreover, the heating units are not directed upward. This avoids contact of the web paper to a front side face of each of the heating units when the web paper slackens.
    Type: Application
    Filed: July 28, 2021
    Publication date: March 3, 2022
    Inventors: Yuki Tsutsui, Mitsuru TANEMOTO, Takahiro UDA, Masaki ERA
  • Patent number: 11235583
    Abstract: An inkjet printing apparatus includes a first and second tanks, and a printer section including an inkjet head which ejects ink droplets toward a printing medium. The inkjet printing apparatus includes a first supply system which supplies ink from the first tank to the second tank, a second supply system which includes an ink supply pump and supplies ink from the second tank to the printer section, and a remaining amount detection unit which detects the amount of ink remaining in the first tank. The remaining amount detection unit calculates the amount of ink transferred from the first tank to the second tank in a measurement period during which ink is supplied from the first tank to the second tank, based on an increase in the amount of the ink stored in the second tank in the measurement period and the operation state of the pump in the measurement period.
    Type: Grant
    Filed: February 13, 2019
    Date of Patent: February 1, 2022
    Assignee: SCREEN HOLDINGS CO., LTD.
    Inventors: Motoyuki Anno, Mitsuru Tanemoto
  • Patent number: 11203213
    Abstract: An inkjet printing device including a transporter that transports a print medium, a printer that discharges ink droplets onto the print medium and a heat roller that includes a peripheral surface with which the print medium comes into contact after printing is provided. The peripheral surface of the heat roller includes a paper contact region and a non-paper region. The device further includes a first heater for the paper region, a second heater for the non-paper region, a target temperature setter that provides a target temperature at the paper region side, and a sensor that measures the temperature at the paper region side. The target temperature and a sensor output are referenced when heating by the first heater is performed, to judge whether supplementary heating of the paper region by the second heater is necessary. If supplementary heating is necessary, the second heater is driven by a drive signal having an intensity that corresponds to a deficient heat amount equivalent value in the paper region.
    Type: Grant
    Filed: November 2, 2018
    Date of Patent: December 21, 2021
    Inventor: Mitsuru Tanemoto
  • Patent number: 11148424
    Abstract: A printing apparatus comprises a main tank, an intermediate tank, and a control unit controlling an amount of the ink stored in the intermediate tank by a normal replenishing operation for increasing an ink remaining amount to a normal amount more than a first reference amount by feeding the ink from the main tank to the intermediate tank if the ink remaining amount falls below the first reference amount. The control unit controls the amount of the ink stored in the intermediate tank by an extraordinary replenishing operation for increasing the ink remaining amount to a second reference amount by feeding the ink from the main tank to the intermediate tank if the ink remaining amount falls below the second reference amount less than the first reference amount when the main tank held is exchanged.
    Type: Grant
    Filed: January 17, 2020
    Date of Patent: October 19, 2021
    Assignee: SCREEN HOLDINGS CO., LTD.
    Inventors: Yuto Suzuki, Katsuaki Takeuchi, Mitsuru Tanemoto
  • Publication number: 20210245530
    Abstract: An inkjet printing device including a transporter that transports a print medium, a printer that discharges ink droplets onto the print medium and a heat roller that includes a peripheral surface with which the print medium comes into contact after printing is provided. The peripheral surface of the heat roller includes a paper contact region and a non-paper region. The device further includes a first heater for the paper region, a second heater for the non-paper region, a target temperature setter that provides a target temperature at the paper region side, and a sensor that measures the temperature at the paper region side. The target temperature and a sensor output are referenced when heating by the first heater is performed, to judge whether supplementary heating of the paper region by the second heater is necessary. If supplementary heating is necessary, the second heater is driven by a drive signal having an intensity that corresponds to a deficient heat amount equivalent value in the paper region.
    Type: Application
    Filed: November 2, 2018
    Publication date: August 12, 2021
    Inventor: Mitsuru TANEMOTO
  • Patent number: 11040538
    Abstract: An inkjet printer includes a maintenance solution supply mechanism. In response to switching of a three-way valve provided in an ink pipe, a maintenance solution is supplied from a maintenance tank to each head through a maintenance pipe. The maintenance tank is a common tank. This suppresses size increase of the printer compared to provision of an individual maintenance tank for each head. The maintenance pipe is connected to the ink pipe at a position downstream of an intermediary tank. This eliminates the need of replacement of ink in the intermediary tank by the maintenance solution during supply of the maintenance solution. This allows reduction in the consumptions of the ink and the maintenance solution.
    Type: Grant
    Filed: August 28, 2019
    Date of Patent: June 22, 2021
    Assignee: SCREEN HOLDINGS CO., LTD.
    Inventors: Yuto Suzuki, Katsuaki Takeuchi, Mitsuru Tanemoto
  • Patent number: 10913284
    Abstract: An inkjet printing apparatus for forming images with ink droplets includes the following elements: an inkjet head, a plurality of holders for removably holding a plurality of ink tanks storing inks interchangeable with each other, branch pipes each having one end thereof connected to one of the ink tanks, a mixer provided at the other ends of the branch pipes, a pump for feeding the inks to the mixer, a feed pipe connecting the mixer and the inkjet head, and a controller for controlling ink feeding. The controller makes different a feed rate of the ink from each of the ink tanks.
    Type: Grant
    Filed: May 2, 2019
    Date of Patent: February 9, 2021
    Assignee: SCREEN HOLDINGS CO., LTD.
    Inventors: Kazuyuki Tanoue, Hiroaki Kishida, Mitsuru Tanemoto
  • Publication number: 20200398580
    Abstract: An inkjet printing apparatus includes a first and second tanks, and a printer section including an inkjet head which ejects ink droplets toward a printing medium. The inkjet printing apparatus includes a first supply system which supplies ink from the first tank to the second tank, a second supply system which includes an ink supply pump and supplies ink from the second tank to the printer section, and a remaining amount detection unit which detects the amount of ink remaining in the first tank. The remaining amount detection unit calculates the amount of ink transferred from the first tank to the second tank in a measurement period during which ink is supplied from the first tank to the second tank, based on an increase in the amount of the ink stored in the second tank in the measurement period and the operation state of the pump in the measurement period.
    Type: Application
    Filed: February 13, 2019
    Publication date: December 24, 2020
    Inventors: Motoyuki Anno, Mitsuru TANEMOTO
  • Publication number: 20200262208
    Abstract: A printing apparatus comprises a main tank, an intermediate tank, and a control unit controlling an amount of the ink stored in the intermediate tank by a normal replenishing operation for increasing an ink remaining amount to a normal amount more than a first reference amount by feeding the ink from the main tank to the intermediate tank if the ink remaining amount falls below the first reference amount. The control unit controls the amount of the ink stored in the intermediate tank by an extraordinary replenishing operation for increasing the ink remaining amount to a second reference amount by feeding the ink from the main tank to the intermediate tank if the ink remaining amount falls below the second reference amount less than the first reference amount when the main tank held is exchanged.
    Type: Application
    Filed: January 17, 2020
    Publication date: August 20, 2020
    Inventors: Yuto Suzuki, Katsuaki Takeuchi, Mitsuru Tanemoto
  • Patent number: 10668743
    Abstract: At least one of an upstream drive roller and a downstream drive roller is operated, after printing on web paper and at a time of transportation halt of the web paper, to make a tension value of the web paper between the upstream drive roller and downstream drive roller lower than a tension value at a time of transporting the web paper, so that at least part of contact portions of the web paper in contact with five cooling rollers separate from the five cooling rollers. Consequently, gaps can be produced between the contact portions of the web paper in contact with the five cooling rollers and the five cooling rollers. This can reduce waterdrops due to dew condensation adhering to the web paper. As a result, paper break can be inhibited at a time of starting transportation of the web paper.
    Type: Grant
    Filed: March 18, 2019
    Date of Patent: June 2, 2020
    Assignee: SCREEN HOLDINGS CO., LTD.
    Inventors: Mitsuru Tanemoto, Susumu Takahashi, Shoji Kakimoto
  • Publication number: 20200094574
    Abstract: An inkjet printer includes a maintenance solution supply mechanism. In response to switching of a three-way valve provided in an ink pipe, a maintenance solution is supplied from a maintenance tank to each head through a maintenance pipe. The maintenance tank is a common tank. This suppresses size increase of the printer compared to provision of an individual maintenance tank for each head. The maintenance pipe is connected to the ink pipe at a position downstream of an intermediary tank. This eliminates the need of replacement of ink in the intermediary tank by the maintenance solution during supply of the maintenance solution. This allows reduction in the consumptions of the ink and the maintenance solution.
    Type: Application
    Filed: August 28, 2019
    Publication date: March 26, 2020
    Inventors: Yuto Suzuki, Katsuaki Takeuchi, Mitsuru Tanemoto
  • Publication number: 20190344578
    Abstract: An inkjet printing apparatus for forming images with ink droplets includes the following elements: an inkjet head, a plurality of holders for removably holding a plurality of ink tanks storing inks interchangeable with each other, branch pipes each having one end thereof connected to one of the ink tanks, a mixer provided at the other ends of the branch pipes, a pump for feeding the inks to the mixer, a feed pipe connecting the mixer and the inkjet head, and a controller for controlling ink feeding. The controller makes different a feed rate of the ink from each of the ink tanks.
    Type: Application
    Filed: May 2, 2019
    Publication date: November 14, 2019
    Inventors: Kazuyuki TANOUE, Hiroaki KISHIDA, Mitsuru TANEMOTO
  • Publication number: 20190291469
    Abstract: At least one of an upstream drive roller and a downstream drive roller is operated, after printing on web paper and at a time of transportation halt of the web paper, to make a tension value of the web paper between the upstream drive roller and downstream drive roller lower than a tension value at a time of transporting the web paper, so that at least part of contact portions of the web paper in contact with five cooling rollers separate from the five cooling rollers. Consequently, gaps can be produced between the contact portions of the web paper in contact with the five cooling rollers and the five cooling rollers. This can reduce waterdrops due to dew condensation adhering to the web paper. As a result, paper break can be inhibited at a time of starting transportation of the web paper.
    Type: Application
    Filed: March 18, 2019
    Publication date: September 26, 2019
    Inventors: Mitsuru Tanemoto, Susumu TAKAHASHI, Shoji KAKIMOTO
  • Patent number: 9248666
    Abstract: In an inkjet printing apparatus, heaters are enclosed with a heater casing, achieving accumulation of heated air and efficient performance of heating. A blowing fan blows air to the heaters. The heater casing includes a blowing port configured to narrow and blow warm air heated with the heaters to a transportation path outside the heater casing in a direction along the transportation path. The warm air narrowed at the blowing port obtains an increased air velocity thereof. In addition, uniform air-quantity distribution and uniform heat-quantity are obtainable. Moreover, the heaters face the transportation path. Consequently, the heaters are provided closer to the transportation path than a conventional external heater. This suppresses heat loss.
    Type: Grant
    Filed: January 18, 2013
    Date of Patent: February 2, 2016
    Assignees: RICOH COMPANY, LTD., SCREEN HOLDINGS CO., LTD.
    Inventors: Hiroyuki Fuchioka, Takeshi Katayama, Akira Taiji, Mitsuru Tanemoto
  • Publication number: 20150174924
    Abstract: In an inkjet printing apparatus, heaters are enclosed with a heater casing, achieving accumulation of heated air and efficient performance of heating. A blowing fan blows air to the heaters. The heater casing includes a blowing port configured to narrow and blow warm air heated with the heaters to a transportation path outside the heater casing in a direction along the transportation path. The warm air narrowed at the blowing port obtains an increased air velocity thereof. In addition, uniform air-quantity distribution and uniform heat-quantity are obtainable. Moreover, the heaters face the transportation path. Consequently, the heaters are provided closer to the transportation path than a conventional external heater. This suppresses heat loss.
    Type: Application
    Filed: January 18, 2013
    Publication date: June 25, 2015
    Applicant: DAINIPPON SCREEN MFG. CO., LTD.
    Inventors: Hiroyuki Fuchioka, Takeshi Katayama, Akira Taiji, Mitsuru Tanemoto
  • Patent number: 9044940
    Abstract: An inkjet printing apparatus for printing images on printing paper by discharging ink while moving inkjet heads and the printing paper relative to each other. The apparatus includes an inkjet head holder for holding the inkjet heads, a controller for operating a plurality of motors to move the inkjet head holder vertically at least between a printing position and an origin position, and a monitoring unit for monitoring, during a vertical movement caused by the controller, synchronous rotations of the plurality of motors, and corresponding directions of rotation of the plurality of motors.
    Type: Grant
    Filed: September 27, 2012
    Date of Patent: June 2, 2015
    Assignees: SCREEN HOLDINGS CO., LTD., RICOH COMPANY, LTD.
    Inventors: Ryouichi Naoe, Mitsuru Tanemoto, Katsuaki Takeuchi