Patents by Inventor Yoshifumi Noguchi
Yoshifumi Noguchi 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).
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Patent number: 11878894Abstract: A sheet discharger includes: an accommodator configured to accommodate sheets; a conveyor configured to convey and discharge a sheet to the accommodator; a detector configured to detect whether a jam of a sheet has occurred in the accommodator and a state of the jam; and a controller configured to control the conveyor to continue sheet discharge upon detection by the detector of the jam in a state where sheet discharge of a jammed sheet is possible.Type: GrantFiled: January 28, 2022Date of Patent: January 23, 2024Assignee: RISO KAGAKU CORPORATIONInventors: Masashi Hara, Yoshifumi Noguchi, Yoshiyuki Okada
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Publication number: 20230312287Abstract: A medium feeding device includes a feeder that feeds a medium, a medium detection sensor that detects the medium fed by the feeder, and a processor that changes feed settings of the feeder based on a detection result of the medium detection sensor, wherein the processor switches a feed setting to be changed among a plurality of the feed settings of the feeder based on the detection result of the medium detection sensor.Type: ApplicationFiled: March 7, 2023Publication date: October 5, 2023Applicant: RISO KAGAKU CORPORATIONInventors: Ryuichi SHIBATA, Yoshifumi NOGUCHI, Masashi HARA
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Publication number: 20220258999Abstract: A controller, upon occurrence of a sheet jam in a downstream conveyor, discharges a sheet in an upstream conveyor from a discharge port by controlling an operation of a switchback roller depending on an operation status of the switchback roller at a time of the occurrence of the sheet jam and then stops sheet conveyance by a conveyor.Type: ApplicationFiled: January 28, 2022Publication date: August 18, 2022Applicant: RISO KAGAKU CORPORATIONInventors: Masashi HARA, Yoshifumi NOGUCHI, Yoshiyuki OKADA
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Publication number: 20220258995Abstract: A sheet discharger includes: an accommodator configured to accommodate sheets; a conveyor configured to convey and discharge a sheet to the accommodator; a detector configured to detect whether a jam of a sheet has occurred in the accommodator and a state of the jam; and a controller configured to control the conveyor to continue sheet discharge upon detection by the detector of the jam in a state where sheet discharge of a jammed sheet is possible.Type: ApplicationFiled: January 28, 2022Publication date: August 18, 2022Applicant: RISO KAGAKU CORPORATIONInventors: Masashi HARA, Yoshifumi NOGUCHI, Yoshiyuki OKADA
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Patent number: 10691056Abstract: In execution of aligning operation in a paper discharge device, every time the number of discharged print sheets reaches the number of aligning-start print sheets, a control unit performs aligning operation while the unit intermittently drives paper feed rollers of an image forming apparatus, to prevent discharge of a print-completed print sheet to a paper discharge table during aligning operation. Further, the control unit intermittently drives an elevation unit such that the print sheet on the top of a paper discharge table is always lower than a paper discharge position of a pair of paper discharge rollers. In execution of high-speed and high-volume printing, it is possible to perform alignment of the print sheet discharged on the paper discharge table without reducing productivity.Type: GrantFiled: August 30, 2017Date of Patent: June 23, 2020Assignee: RISO KAGAKU CORPORATIONInventor: Yoshifumi Noguchi
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Publication number: 20180088511Abstract: In execution of aligning operation in a paper discharge device, every time the number of discharged print sheets reaches the number of aligning-start print sheets, a control unit performs aligning operation while the unit intermittently drives paper feed rollers of an image forming apparatus, to prevent discharge of a print-completed print sheet to a paper discharge table during aligning operation. Further, the control unit intermittently drives an elevation unit such that the print sheet on the top of a paper discharge table is always lower than a paper discharge position of a pair of paper discharge rollers. In execution of high-speed and high-volume printing, it is possible to perform alignment of the print sheet discharged on the paper discharge table without reducing productivity.Type: ApplicationFiled: August 30, 2017Publication date: March 29, 2018Applicant: RISO KAGAKU CORPORATIONInventor: Yoshifumi NOGUCHI
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Patent number: 9426875Abstract: Provided are a plasma stream generation method, a plasma processing method, a plasma generation apparatus, and a plasma processing apparatus using same, which enable plasma processing with rotating plasma to be controllably performed with stability and thereby improved in quality. The frequencies in four quadrants Z1-Z4 are set at 7, 15, 6, and 20 Hz, respectively. This frequency variability can realize different rotational velocity of plasma in the four-portion partitioned rotational angle regions. The rotational velocities of plasmas P2, P4 are greater than those of plasmas P1, P3. Thus, the rotating plasma, which rotates at a periodically varied rotational velocity as plasma P1, plasma P2, plasma P3, and plasma P4 in that order while traveling in a circular orbit C, can be used for irradiation therewith, thereby performing uniform film formation treatment in first quadrant Z1 to fourth quadrant Z4.Type: GrantFiled: April 20, 2011Date of Patent: August 23, 2016Assignee: Ferrotec CorporationInventors: Keisuke Sagisaka, Yoshifumi Noguchi
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Publication number: 20130034668Abstract: Provided are a plasma stream generation method, a plasma processing method, a plasma generation apparatus, and a plasma processing apparatus using same, which enable plasma processing with rotating plasma to be controllably performed with stability and thereby improved in quality. The frequencies in four quadrants Z1-Z4 are set at 7, 15, 6, and 20 Hz, respectively. This frequency variability can realize different rotational velocity of plasma in the four-portion partitioned rotational angle regions. The rotational velocities of plasmas P2, P4 are greater than those of plasmas P1, P3. Thus, the rotating plasma, which rotates at a periodically varied rotational velocity as plasma P1, plasma P2, plasma P3, and plasma P4 in that order while traveling in a circular orbit C, can be used for irradiation therewith, thereby performing uniform film formation treatment in first quadrant Z1 to fourth quadrant Z4.Type: ApplicationFiled: April 20, 2011Publication date: February 7, 2013Applicant: Ferrotec CorporationInventors: Keisuke Sagisaka, Yoshifumi Noguchi
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Publication number: 20080084587Abstract: There is provided an image reading device directly connected to a printer and modifying an image data to print an image in a size and/or with a layout desired by a user, wherein, after the information for the modification has been obtained once, no acquisition of the information for the modification is required. The inventive device comprises an image data output portion for outputting an image data with a communication system which enables a printer supporting a communication standard to print the image directly received from the output portion, a printer identifying portion for identifying the printer and a modification data storage portion for storing the modification data associated with an identifiable printer and used in modifying the image data to be transmitted to the printer.Type: ApplicationFiled: October 1, 2007Publication date: April 10, 2008Applicant: RISO KAGAKU CORPORATIONInventor: Yoshifumi Noguchi
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Patent number: 6813386Abstract: An image signal read out from an original is binary-coded on the basis of a binary-coding threshold value. The binary-coding threshold value is calculated by making a histogram representing a frequency distribution of tones of the image signal, calculating the value of a peak tone at which the frequency is maximized, calculating as a first tone at which the frequency becomes equal to a predetermined level on the lower tone side of the peak tone, calculating a reference binary-coding threshold value by adding to the peak tone the difference between the first tone and the peak tone, and determining the binary-coding threshold value on the basis of the reference binary-coding threshold value.Type: GrantFiled: January 5, 2001Date of Patent: November 2, 2004Assignee: Riso Kagaku CorporationInventors: Yoshifumi Noguchi, Xiong Jianmin
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Publication number: 20010007596Abstract: An image signal read out from an original is binary-coded on the basis of a binary-coding threshold value. The binary-coding threshold value is calculated by making a histogram representing a frequency distribution of tones of the image signal, calculating the value of a peak tone at which the frequency is maximized, calculating as a first tone at which the frequency becomes equal to a predetermined level on the lower tone side of the peak tone, calculating a reference binary-coding threshold value by adding to the peak tone the difference between the first tone and the peak tone, and determining the binary-coding threshold value on the basis of the reference binary-coding threshold value.Type: ApplicationFiled: January 5, 2001Publication date: July 12, 2001Inventors: Yoshifumi Noguchi, Xiong Jianmin
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Patent number: 5743182Abstract: A stencil printing apparatus is provided, which comprises a pressure chamber having a first wall and a second wall both of which face each other and are built up together via a frame-like packing, said first wall comprising a frame member which has flexibility in all directions and on which a diaphragm having flexibility is extended; means for supporting a stencil so as to have the stencil disposed opposite to said diaphragm in the pressure chamber; means for supporting printing paper so as to have the printing paper disposed between the stencil and the second wall in the pressure chamber, and means for reducing pressure in the pressure chamber. The diaphragm may be extended on the frame member by laminating it onto the frame member, and the packing and the means for supporting a stencil may be installed on part of said diaphragm overlapping with the frame member. The means for supporting a stencil may be a pair of fabric fastener, one half of the pair being fixed to the frame member.Type: GrantFiled: May 7, 1996Date of Patent: April 28, 1998Assignee: Riso Kagaku CorporationInventors: Akio Kobayashi, Yoshifumi Noguchi, Masakazu Kawano, Akira Ikezawa
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Patent number: 4764979Abstract: Direct relay equipment includes a first antenna, a second antenna, an up direction circuit connected from the first antenna via a first circulator to the second antenna via a second circulator, and a down direction circuit connected from the second antenna via the second circulator to the first antenna via the first circulator. In the up direction circuit and the down direction circuit, the received signal having a frequency f.sub.1 from the first (or second) antenna is amplified by a microwave amplifier, the output of the microwave amplifier is converted to a signal having a frequency f.sub.2 (sending frequency), the signal having the frequency f.sub.2 is amplified by the same amplifier, and the amplified signal having a frequency f.sub.2 is sent from the second (or first) antenna.Type: GrantFiled: June 3, 1987Date of Patent: August 16, 1988Assignee: Fujitsu LimitedInventors: Yoshifumi Noguchi, Kouichi Ono, Hiroyuki Endoh