Patents by Inventor Tomoji Ishikawa
Tomoji Ishikawa 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).
-
Patent number: 9529303Abstract: A toner container includes a cylindrical container body, having a first opening in a first end thereof and a notch in a circumferential surface thereof continuous with the first opening in the first end, a flange member to engage the first opening and the notch in the container body and having a toner outlet therein through which toner in the container body is discharged, a shutter member disposed on the outer circumferential surface of the container body, a conveyance member, rotatably installed inside the container body to convey the toner from a second end of the container body opposite the first end to the toner outlet in the flange member, and a recessed portion in the container body that projects inward into the interior of the toner container 5 mm or less from an inner surface of the container body.Type: GrantFiled: March 2, 2016Date of Patent: December 27, 2016Assignee: Ricoh Company, Ltd.Inventors: Kaori Mitsuishi, Seiji Terazawa, Atsushi Inoue, Tomoji Ishikawa
-
Patent number: 9436127Abstract: A toner container includes a cylindrical container body, having a first opening in a first end thereof and a notch in a circumferential surface thereof continuous with the first opening in the first end, a flange member to engage the first opening and the notch in the container body and having a toner outlet therein through which toner in the container body is discharged, a shutter member disposed on the outer circumferential surface of the container body, a conveyance member, rotatably installed inside the container body to convey the toner from a second end of the container body opposite the first end to the toner outlet in the flange member, and a recessed portion in the container body that projects inward into the interior of the toner container 5 mm or less from an inner surface of the container body.Type: GrantFiled: June 26, 2015Date of Patent: September 6, 2016Assignee: Ricoh Company, Ltd.Inventors: Kaori Mitsuishi, Seiji Terazawa, Atsushi Inoue, Tomoji Ishikawa
-
Publication number: 20160202632Abstract: A toner container includes a cylindrical container body, having a first opening in a first end thereof and a notch in a circumferential surface thereof continuous with the first opening in the first end, a flange member to engage the first opening and the notch in the container body and having a toner outlet therein through which toner in the container body is discharged, a shutter member disposed on the outer circumferential surface of the container body, a conveyance member, rotatably installed inside the container body to convey the toner from a second end of the container body opposite the first end to the toner outlet in the flange member, and a recessed portion in the container body that projects inward into the interior of the toner container 5 mm or less from an inner surface of the container body.Type: ApplicationFiled: March 2, 2016Publication date: July 14, 2016Inventors: Kaori MITSUISHI, Seiji TERAZAWA, Atsushi INOUE, Tomoji ISHIKAWA
-
Patent number: 9213261Abstract: A toner container includes a cylindrical container body, having a first opening in a first end thereof and a notch in a circumferential surface thereof continuous with the first opening in the first end, a flange member to engage the first opening and the notch in the container body and having a toner outlet therein through which toner in the container body is discharged, a shutter member disposed on the outer circumferential surface of the container body, a conveyance member, rotatably installed inside the container body to convey the toner from a second end of the container body opposite the first end to the toner outlet in the flange member, and a recessed portion in the container body that projects inward into the interior of the toner container 5 mm or less from an inner surface of the container body.Type: GrantFiled: August 12, 2013Date of Patent: December 15, 2015Assignee: Ricoh Company, Ltd.Inventors: Kaori Mitsuishi, Seiji Terazawa, Atsushi Inoue, Tomoji Ishikawa
-
Patent number: 9170530Abstract: A powder container includes a cylindrical container body to contain a powder, having an opening in one end thereof, to convey the powder contained in the container body to the opening with rotation of the container body, and having a container-body projection provided on an outer circumferential surface of the container body; and a cylindrical holder, into which the end of the container body having the opening is inserted, to hold the container body rotatably, having a powder outlet through which the powder is discharged from the holder and a holder projection provided on an inner circumferential surface thereof. The container-body projection repetitively contacts and separates from the holder projection with rotation of the container body to vibrate the container body and the holder.Type: GrantFiled: June 10, 2011Date of Patent: October 27, 2015Assignee: Ricoh Company, Ltd.Inventors: Yuki Oshikawa, Yuuki Satoh, Takuya Seshita, Toshiki Hayashi, Masashi Nagayama, Hiroyuki Uenishi, Tomoji Ishikawa
-
Publication number: 20150293474Abstract: A toner container includes a cylindrical container body, having a first opening in a first end thereof and a notch in a circumferential surface thereof continuous with the first opening in the first end, a flange member to engage the first opening and the notch in the container body and having a toner outlet therein through which toner in the container body is discharged, a shutter member disposed on the outer circumferential surface of the container body, a conveyance member, rotatably installed inside the container body to convey the toner from a second end of the container body opposite the first end to the toner outlet in the flange member, and a recessed portion in the container body that projects inward into the interior of the toner container 5 mm or less from an inner surface of the container body.Type: ApplicationFiled: June 26, 2015Publication date: October 15, 2015Inventors: Kaori MITSUISHI, Seiji TERAZAWA, Atsushi INOUE, Tomoji ISHIKAWA
-
Publication number: 20130330106Abstract: A toner container includes a cylindrical container body, having a first opening in a first end thereof and a notch in a circumferential surface thereof continuous with the first opening in the first end, a flange member to engage the first opening and the notch in the container body and having a toner outlet therein through which toner in the container body is discharged, a shutter member disposed on the outer circumferential surface of the container body, a conveyance member, rotatably installed inside the container body to convey the toner from a second end of the container body opposite the first end to the toner outlet in the flange member, and a recessed portion in the container body that projects inward into the interior of the toner container 5 mm or less from an inner surface of the container body.Type: ApplicationFiled: August 12, 2013Publication date: December 12, 2013Inventors: Kaori MITSUISHI, Seiji TERAZAWA, Atsushi INOUE, Tomoji ISHIKAWA
-
Patent number: 8532542Abstract: A toner container includes a cylindrical container body, having a first opening in a first end thereof and a notch in a circumferential surface thereof continuous with the first opening in the first end, a flange member to engage the first opening and the notch in the container body and having a toner outlet therein through which toner in the container body is discharged, a shutter member disposed on the outer circumferential surface of the container body, a conveyance member, rotatably installed inside the container body to convey the toner from a second end of the container body opposite the first end to the toner outlet in the flange member, and a recessed portion in the container body that projects inward into the interior of the toner container 5 mm or less from an inner surface of the container body.Type: GrantFiled: July 23, 2010Date of Patent: September 10, 2013Assignee: Ricoh Company, LimitedInventors: Kaori Mitsuishi, Seiji Terazawa, Atsushi Inoue, Tomoji Ishikawa
-
Patent number: 8311447Abstract: A toner container includes a cylindrical container body, having a first opening in a first end thereof and a notch in a circumferential surface thereof continuous with the first opening in the first end, a flange member to engage the first opening and the notch in the container body and having a toner outlet therein through which toner in the container body is discharged, a shutter member disposed on the outer circumferential surface of the container body, a conveyance member, rotatably installed inside the container body to convey the toner from a second end of the container body opposite the first end to the toner outlet in the flange member, and a recessed portion in the container body that projects inward into the interior of the toner container 5 mm or less from an inner surface of the container body.Type: GrantFiled: January 10, 2011Date of Patent: November 13, 2012Assignee: Ricoh Company, LimitedInventors: Kaori Mitsuishi, Seiji Terazawa, Atsushi Inoue, Tomoji Ishikawa
-
Publication number: 20110305485Abstract: A powder container includes a cylindrical container body to contain a powder, having an opening in one end thereof, to convey the powder contained in the container body to the opening with rotation of the container body, and having a container-body projection provided on an outer circumferential surface of the container body; and a cylindrical holder, into which the end of the container body having the opening is inserted, to hold the container body rotatably, having a powder outlet through which the powder is discharged from the holder and a holder projection provided on an inner circumferential surface thereof. The container-body projection repetitively contacts and separates from the holder projection with rotation of the container body to vibrate the container body and the holder.Type: ApplicationFiled: June 10, 2011Publication date: December 15, 2011Inventors: Yuki OSHIKAWA, Yuuki SATOH, Takuya SESHITA, Toshiki HAYASHI, Masashi NAGAYAMA, Hiroyuki UENISHI, Tomoji ISHIKAWA
-
Publication number: 20110123216Abstract: A toner container includes a cylindrical container body, having a first opening in a first end thereof and a notch in a circumferential surface thereof continuous with the first opening in the first end, a flange member to engage the first opening and the notch in the container body and having a toner outlet therein through which toner in the container body is discharged, a shutter member disposed on the outer circumferential surface of the container body, a conveyance member, rotatably installed inside the container body to convey the toner from a second end of the container body opposite the first end to the toner outlet in the flange member, and a recessed portion in the container body that projects inward into the interior of the toner container 5 mm or less from an inner surface of the container body.Type: ApplicationFiled: January 10, 2011Publication date: May 26, 2011Inventors: Kaori MITSUISHI, Seiji TERAZAWA, Atsushi INOUE, Tomoji ISHIKAWA
-
Publication number: 20110020039Abstract: A toner container includes a cylindrical container body, having a first opening in a first end thereof and a notch in a circumferential surface thereof continuous with the first opening in the first end, a flange member to engage the first opening and the notch in the container body and having a toner outlet therein through which toner in the container body is discharged, a shutter member disposed on the outer circumferential surface of the container body, a conveyance member, rotatably installed inside the container body to convey the toner from a second end of the container body opposite the first end to the toner outlet in the flange member, and a recessed portion in the container body that projects inward into the interior of the toner container 5 mm or less from an inner surface of the container body.Type: ApplicationFiled: July 23, 2010Publication date: January 27, 2011Inventors: Kaori MITSUISHI, Seiji Terazawa, Atsushi Inoue, Tomoji Ishikawa
-
Patent number: 7486916Abstract: An image forming apparatus includes a process cartridge, a toner storage, and a toner supplying unit. The process cartridge includes an image bearing member, a developer container, a developer bearing member, and a pair of side plates. The developer container includes a toner inlet mounted at a predetermined position on one of its top surface. The pair of side plates are arranged in parallel and separated by a predetermined distance which determines a predetermined longitudinal width of the process cartridge and configured to support the components in the process cartridge.Type: GrantFiled: December 8, 2006Date of Patent: February 3, 2009Assignee: Ricoh Company, Ltd.Inventors: Kiyonori Tsuda, Atsushi Sampe, Takeo Suda, Satoshi Hatori, Yuji Arai, Tomoji Ishikawa, Naoto Watanabe
-
Publication number: 20070081835Abstract: An image forming apparatus includes a process cartridge, a toner storage, and a toner supplying unit. The process cartridge includes an image bearing member, a developer container, a developer bearing member, and a pair of side plates. The developer container includes a toner inlet mounted at a predetermined position on one of its top surface. The pair of side plates are arranged in parallel and separated by a predetermined distance which determines a predetermined longitudinal width of the process cartridge and configured to support the components in the process cartridge.Type: ApplicationFiled: December 8, 2006Publication date: April 12, 2007Inventors: Kiyonori TSUDA, Atsushi SAMPE, Takeo SUDA, Satoshi HATORI, Yuji ARAI, Tomoji ISHIKAWA, Naoto WATANABE
-
Patent number: 7162189Abstract: An image forming apparatus includes a process cartridge, a toner storage, and a toner supplying unit. The process cartridge includes an image bearing member, a developer container, a developer bearing member, and a pair of side plates. The developer container includes a toner inlet mounted at a predetermined position on one of its top surface. The pair of side plates are arranged in parallel and separated by a predetermined distance which determines a predetermined longitudinal width of the process cartridge and configured to support the components in the process cartridge.Type: GrantFiled: March 5, 2004Date of Patent: January 9, 2007Assignee: Ricoh Company, Ltd.Inventors: Kiyonori Tsuda, Atsushi Sampe, Takeo Suda, Satoshi Hatori, Yuji Arai, Tomoji Ishikawa, Naoto Watanabe
-
Patent number: 7146122Abstract: An image forming apparatus including at least two image forming units arranged side by side in an arrangement direction and each of the image forming units contains a photoconductor configured to bear a latent electrostatic image thereon and at least one process device configured to form a toner image on the photoconductor, and a unit case having a notch thereon to grasp the unit case.Type: GrantFiled: April 27, 2006Date of Patent: December 5, 2006Assignee: Ricoh Company LimitedInventors: Satoshi Hatori, Kiyonori Tsuda, Naoto Watanabe, Takeo Suda, Yuji Arai, Tomoji Ishikawa, Atsushi Sampe
-
Patent number: 7136610Abstract: A method and apparatus of image forming include a process cartridge detachably mounted therein. The process cartridge includes a photoconductive element and a housing storing the photoconductive element and including a guide portion guiding the process cartridge. The guide portion faces an inner wall of the image forming apparatus or another process cartridge adjoining thereto and guides the adjoining process cartridge. The guide portion slidably engages with a portion of the process adjoining cartridge. The guide portion varies in shape according to its position in the image forming apparatus. The guide portion may be separately formed from or integrated with the housing. A method and apparatus of an image forming includes an image transfer mechanism and a plurality of process cartridges arranged in parallel. Each of the process cartridges includes photoconductive elements and a housing, and forms an image for a single separated color.Type: GrantFiled: March 1, 2004Date of Patent: November 14, 2006Assignee: Ricoh Company, Ltd.Inventors: Yuji Arai, Atsushi Sampe, Kiyonori Tsuda, Takeo Suda, Satoshi Hatori, Tomoji Ishikawa, Naoto Watanabe, Hiroyuki Nagashima, Yoshiyuki Kimura, Nobuo Kuwabara, Hiroshi Hosokawa, Hideki Zemba, Wakako Murakami, Satoshi Narumi, Ryuta Takeichi, Masanori Kawasumi, Kazuhiko Umemura
-
Patent number: 7114928Abstract: A high pressure pump for decreasing an initial axial force of a clamping bolt and preventing distortion of a sealing surface and a cylinder form. The high pressure pump has an intermediate member including a cylinder body. The cylinder body has a pressurizing chamber communicated with a cylinder accommodating a plunger. Fluid in the pressurizing chamber is pressurized by reciprocating the plunger. The intermediate member is arranged between a cover and a flange and clamped by a clamping bolt. The clamping bolt has an exposed area at its axially central area where the entire periphery of the clamping bolt is exposed from the cover and the flange. One or both of the cover and the flange clamp the intermediate member with a flexing elastic force.Type: GrantFiled: April 17, 2001Date of Patent: October 3, 2006Assignee: Toyota Jidosha Kabushiki KaishaInventors: Kazuhiro Asayama, Tomoji Ishikawa, Naoki Kurata, Daichi Yamazaki, Masanori Sugiyama, Hiroshi Inoue
-
Publication number: 20060193655Abstract: An image forming apparatus including at least two image forming units arranged side by side in an arrangement direction and each of the image forming units contains a photoconductor configured to bear a latent electrostatic image thereon and at least one process device configured to form a toner image on the photoconductor, and a unit case having a notch thereon to grasp the unit case.Type: ApplicationFiled: April 27, 2006Publication date: August 31, 2006Inventors: Satoshi Hatori, Kiyonori Tsuda, Naoto Watanabe, Takeo Suda, Yuji Arai, Tomoji Ishikawa, Atsushi Sampe
-
Patent number: 7072602Abstract: An image forming apparatus including at least two image forming units arranged side by side in an arrangement direction and each of the image forming units contains a photoconductor configured to bear a latent electrostatic image thereon and at least one process device configured to form a toner image on the photoconductor, and a unit case having a notch thereon to grasp the unit case.Type: GrantFiled: June 7, 2004Date of Patent: July 4, 2006Assignee: Ricoh Company LimitedInventors: Satoshi Hatori, Kiyonori Tsuda, Naoto Watanabe, Takeo Suda, Yuji Arai, Tomoji Ishikawa, Atsushi Sampe