Patents by Inventor Seiji Terazawa
Seiji Terazawa 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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Publication number: 20130216270Abstract: A sieve device is provided. The sieve device includes a sieve body and an introduction unit. The sieve body includes a cylinder, a filter, and a blade. The cylinder is adapted to be supplied with toner particles. The filter is disposed at a bottom of the cylinder. The blade is adapted to agitate the toner particles within the cylinder to allow the toner particles to pass through the filter. The blade is rotatable about a rotation axis that intersects with the filter in proximity to the filter. The introduction unit is adapted to introduce the toner particles passed through the filter outside the sieve body.Type: ApplicationFiled: January 10, 2013Publication date: August 22, 2013Inventors: Junji YAMABE, Hideo Ichikawa, Seiji Terazawa, Masashi Hasegawa
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Publication number: 20130216271Abstract: A sieve device is provided. The sieve device includes a sieve body and an inlet unit. The sieve body includes a cylinder, a filter, and a blade. The cylinder is adapted to be supplied with a powder. The filter is disposed at a bottom of the cylinder. The blade is adapted to agitate the powder within the cylinder to allow the powder to pass through the filter. The blade is rotatable about a rotation axis that intersects with the filter in proximity to the filter. The inlet unit is adapted to introduce the powder into the sieve body.Type: ApplicationFiled: January 10, 2013Publication date: August 22, 2013Inventors: Junji Yamabe, Hideo Ichikawa, Seiji Terazawa, Masashi Hasegawa
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Publication number: 20130216269Abstract: A nozzle is provided. The nozzle includes a gas injection unit, a sieve body, and a derivation unit. The gas injection unit is adapted to inject a gas into a powder container containing a powder. The sieve body includes a cylinder, a filter, and a blade. The cylinder has a communication aperture for communicating the cylinder with the powder container. The filter is disposed at a bottom of the cylinder. The blade is adapted to agitate the powder introduced into the cylinder from the powder container through the communication aperture upon injection of the gas into the powder container to allow the powder to pass through the filter. The blade is rotatable about a rotation axis that intersects with the filter in proximity to the filter. The derivation unit is adapted to derive the powder passed through the filter out of the powder container.Type: ApplicationFiled: January 10, 2013Publication date: August 22, 2013Inventors: Junji Yamabe, Hideo Ichikawa, Seiji Terazawa, Masashi Hasegawa
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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
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Publication number: 20120234735Abstract: A sieving device including a hollow cylindrical body, a filter disposed at a bottom portion of the hollow cylindrical body, and a blade configured to rotate in close proximity to the filter around a rotation axis thereof crossing the filter to thereby stir powder supplied to the hollow cylindrical body.Type: ApplicationFiled: March 13, 2012Publication date: September 20, 2012Applicant: RICOH COMPANY, LTD.Inventors: Hideo ICHIKAWA, Kaori Ozeki, Tatsushi Umayahara, Takashi Ono, Masayoshi Suzuki, Teruo Shibata, Keiichi Yano, Masato Suzuki, Eiichi Masushio, Hiroshi Sano, Yusuke Uchida, Junji Yamabe, Seiji Terazawa, Masashi Hasegawa
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Patent number: 8233818Abstract: A toner container that can pass not only air but a toner, has toner sealing ability, and does not allow toner leakage even during transportation and an inner pressure change of the container, by placing an air permeable member at the fitting part in the casing part. An inner cap including at least the air permeable member is placed in the casing part of the inner cap, wherein the inner cap is used for a toner container that is detachably mounted to a developing unit in an image forming apparatus using an electrophotographical method, and the toner container includes at least a container main body, the inner cap, and an outer cap.Type: GrantFiled: March 12, 2008Date of Patent: July 31, 2012Assignee: Ricoh Company, Ltd.Inventors: Tomoe Sasaki, Masashi Hasegawa, Tetsuya Kusano, Nobuhiro Makita, Makoto Kawaguchi, Yoshihide Kawamura, Seiji Terazawa
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Publication number: 20120144783Abstract: A packaging member includes a cushioning member that holds a holding part of a to-be-packaged member different from a predetermined part of the to-be-packaged member without coming into contact with the predetermined part of the to-be-packaged member. The cushioning member cushions a shock transmitting to the to-be-packaged member, and the packaging member packages the to-be-packaged member via the cushioning member.Type: ApplicationFiled: December 7, 2011Publication date: June 14, 2012Applicant: RICOH COMPANY, LTD.Inventors: Shogo NAKAMURA, Tomokazu SAITO, Atsushi INOUE, Seiji TERAZAWA, Mizuho IMARUOKA, Chiharu MATSUI
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Patent number: 8126375Abstract: A toner container includes a longitudinal container body and a held portion. The longitudinal container body has a first end and a second end distal to the first end in a length direction of the container body. The container body includes a gear configured to engage with a drive gear provided in the main body. The held portion is attached to the first end of the container body and configured to be detachably attached to the toner-container holder. The held portion includes a toner outlet, is configured to be held by the toner-container holder in non-rotating manner, and is biased downwardly by a force applied from the drive gear to the gear when the drive gear rotates.Type: GrantFiled: June 20, 2011Date of Patent: February 28, 2012Assignee: Ricoh Co., Ltd.Inventors: Nobuyuki Taguchi, Masayuki Yamane, Hideo Yoshizawa, Takeroh Kurenuma, Takayuki Tamaki, Seiji Terazawa, Masashi Hasegawa, Fumie Satoh, Teruo Hitosugi, Takashi Hisazumi, Goro Katsuyama
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Patent number: 8068770Abstract: An insertion passage 104Y for inserting a suction nozzle 73Y fixed to an image forming apparatus is provided on a holder 102Y, and a connecting passage 114Y that connects the insertion passage 104Y and a toner storage section 106Y of the holder 102Y is provided. After the toner sent from bottle 101Y to the holder 102Y falls towards the connecting passage 104Y, the toner flows into the suction nozzle 73Y through the connecting passage 114Y and is then discharged out of the holder 102Y. An airtightness between the insertion passage 114Y and the suction nozzle 73Y inserted into the insertion passage 114 Y is superior than an airtightness between the bottle 101Y and the holder 102Y engaged with the bottle 101Y.Type: GrantFiled: August 2, 2010Date of Patent: November 29, 2011Assignee: Ricoh Company, Ltd.Inventors: Takeroh Kurenuma, Fumio Ogata, Seiji Terazawa, Masayuki Yamane, Kenzo Tatsumi, Kiyonori Tsuda, Emi Kita, Nobuyuki Taguchi, Satoshi Narumi, Kazuhisa Sudo
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Publication number: 20110286771Abstract: A toner container includes a longitudinal container body and a held portion. The longitudinal container body has a first end and a second end distal to the first end in a length direction of the container body. The container body includes a gear configured to engage with a drive gear provided in the main body. The held portion is attached to the first end of the container body and configured to be detachably attached to the toner-container holder. The held portion includes a toner outlet, is configured to be held by the toner-container holder in non-rotating manner, and is biased downwardly by a force applied from the drive gear to the gear when the drive gear rotates.Type: ApplicationFiled: June 20, 2011Publication date: November 24, 2011Inventors: Nobuyuki TAGUCHI, Masayuki YAMANE, Hideo YOSHIZAWA, Takeroh KURENUMA, Takayuki TAMAKI, Seiji TERAZAWA, Masashi HASEGAWA, Fumie SATOH, Teruo HITOSUGI, Takashi HISAZUMI, Goro KATSUYAMA
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Patent number: 7991334Abstract: A toner container includes a longitudinal container body and a held portion. The longitudinal container body has a first end and a second end distal to the first end in a length direction of the container body. The container body includes a gear configured to engage with a drive gear provided in the main body. The held portion is attached to the first end of the container body and configured to be detachably attached to the toner-container holder. The held portion includes a toner outlet, is configured to be held by the toner-container holder in non-rotating manner, and is biased downwardly by a force applied from the drive gear to the gear when the drive gear rotates.Type: GrantFiled: August 16, 2010Date of Patent: August 2, 2011Assignee: Ricoh Co., Ltd.Inventors: Nobuyuki Taguchi, Masayuki Yamane, Hideo Yoshizawa, Takeroh Kurenuma, Takayuki Tamaki, Seiji Terazawa, Masashi Hasegawa, Fumie Satoh, Teruo Hitosugi, Takashi Hisazumi, Goro Katsuyama
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Patent number: 7962069Abstract: An insertion passage 104Y for inserting a suction nozzle 73Y fixed to an image forming apparatus is provided on a holder 102Y, and a connecting passage 114Y that connects the insertion passage 104Y and a toner storage section 106Y of the holder 102Y is provided After the toner sent from bottle 101Y to the holder 102Y falls towards the connecting passage 104Y, the toner flows into the suction nozzle 73Y through the connecting passage 114Y and is then discharged out of the holder 102Y An airtightness between the insertion passage 114Y and the suction nozzle 73Y inserted into the insertion passage 114 Y is superior than an airtightness between the bottle 101Y and the holder 102Y engaged with the bottle 101Y.Type: GrantFiled: August 5, 2005Date of Patent: June 14, 2011Assignee: Ricoh Company, Ltd.Inventors: Takeroh Kurenuma, Fumio Ogata, Seiji Terazawa, Masayuki Yamane, Kenzo Tatsumi, Kiyonori Tsuda, Emi Kita, Nobuyuki Taguchi, Satoshi Narumi, Kazuhisa Sudo
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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
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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
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Publication number: 20110002713Abstract: A toner container includes a longitudinal container body and a held portion. The longitudinal container body has a first end and a second end distal to the first end in a length direction of the container body. The container body includes a gear configured to engage with a drive gear provided in the main body. The held portion is attached to the first end of the container body and configured to be detachably attached to the toner-container holder. The held portion includes a toner outlet, is configured to be held by the toner-container holder in non-rotating manner, and is biased downwardly by a force applied from the drive gear to the gear when the drive gear rotates.Type: ApplicationFiled: August 16, 2010Publication date: January 6, 2011Inventors: Nobuyuki Taguchi, Masayuki Yamane, Hideo Yoshizawa, Takeroh Kurenuma, Takayuki Tamaki, Seiji Terazawa, Masashi Hasegawa, Fumie Satoh, Teruo Hitosugi, Takashi Hisazumi, Goro Katsuyama
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Patent number: 7853184Abstract: A toner container includes a longitudinal container body and a held portion. The longitudinal container body has a first end and a second end distal to the first end in a length direction of the container body. The container body includes a gear configured to engage with a drive gear provided in the main body. The held portion is attached to the first end of the container body and configured to be detachably attached to the toner-container holder. The held portion includes a toner outlet, is configured to be held by the toner-container holder in non-rotating manner, and is biased downwardly by a force applied from the drive gear to the gear when the drive gear rotates.Type: GrantFiled: December 6, 2006Date of Patent: December 14, 2010Assignee: Ricoh Co., Ltd.Inventors: Nobuyuki Taguchi, Masayuki Yamane, Hideo Yoshizawa, Takeroh Kurenuma, Takayuki Tamaki, Seiji Terazawa, Masashi Hasegawa, Fumie Satoh, Teruo Hitosugi, Takashi Hisazumi, Goro Katsuyama
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Publication number: 20100296847Abstract: An insertion passage 104Y for inserting a suction nozzle 73Y fixed to an image forming apparatus is provided on a holder 102Y, and a connecting passage 114Y that connects the insertion passage 104Y and a toner storage section 106Y of the holder 102Y is provided. After the toner sent from bottle 101Y to the holder 102Y falls towards the connecting passage 104Y, the toner flows into the suction nozzle 73Y through the connecting passage 114Y and is then discharged out of the holder 102Y. An airtightness between the insertion passage 114Y and the suction nozzle 73Y inserted into the insertion passage 114 Y is superior than an airtightness between the bottle 101Y and the holder 102Y engaged with the bottle 101Y.Type: ApplicationFiled: August 2, 2010Publication date: November 25, 2010Inventors: Takeroh Kurenuma, Fumio Ogata, Seiji Terazawa, Masayuki Yamane, Kenzo Tatsumi, Kiyonori Tsuda, Emi Kita, Nobuyuki Taguchi, Satoshi Narumi, Kazuhisa Sudo
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Publication number: 20100284710Abstract: A toner container that can pass not only air but a toner, has toner sealing ability, and does not allow toner leakage even during transportation and an inner pressure change of the container, by placing an air permeable member at the fitting part in the casing part. An inner cap including at least the air permeable member is placed in the casing part of the inner cap, wherein the inner cap is used for a toner container that is detachably mounted to a developing unit in an image forming apparatus using an electrophotographical method, and the toner container includes at least a container main body, the inner cap, and an outer cap.Type: ApplicationFiled: March 12, 2008Publication date: November 11, 2010Inventors: Tomoe Sasaki, Masashi Hasegawa, Tetsuya Kusano, Nobuhiro Makita, Makoto Kawaguchi, Yoshihide Kawamura, Seiji Terazawa
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Patent number: 7822371Abstract: A toner container includes a longitudinal container body, a held portion, and a standing inhibiting unit. The container body has a first end and a second end distal to the first end in length direction of the container body. The held portion is attached to the first end and has a toner outlet for discharging the toner contained in the container body. The held portion is held by the toner-container holder. The standing inhibiting unit is provided in the held portion and inhibits the toner container from being stood on a horizontal plane with the held portion directed vertically downward with respect to the container body.Type: GrantFiled: December 6, 2006Date of Patent: October 26, 2010Assignee: Ricoh Co., Ltd.Inventors: Nobuyuki Taguchi, Masayuki Yamane, Hideo Yoshizawa, Takeroh Kurenuma, Takayuki Tamaki, Seiji Terazawa, Masashi Hasegawa, Fumie Satoh, Teruo Hitosugi, Takashi Hisazumi, Goro Katsuyama
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Patent number: 7706699Abstract: A toner container includes a longitudinal container body, a held portion, and an electric component. The longitudinal container body has a first end and a second end distal to the first end in a length direction of the container body. The held portion is attached to the first end of the container body and configured to be detachably attached to the toner-container holder. The held portion includes a toner outlet for discharging the toner. The electric component electrically communicates with a component in the main body to detect whether the toner container is operatively set in the toner-container holder. The electric component is attached to the held portion such that when the held portion is attached to the toner-container holder the electric component is located above the toner outlet with respect to a vertical direction.Type: GrantFiled: December 6, 2006Date of Patent: April 27, 2010Assignee: Ricoh Co., Ltd.Inventors: Nobuyuki Taguchi, Masayuki Yamane, Hideo Yoshizawa, Takeroh Kurenuma, Takayuki Tamaki, Seiji Terazawa, Masashi Hasegawa, Fumie Satoh, Teruo Hitosugi, Takashi Hisazumi, Goro Katsuyama