Patents by Inventor Kotaro Iyasu
Kotaro Iyasu 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: 20060108268Abstract: A water treatment control system using a fluorescence analyzer includes an activated carbon injection equipment 4 having an activated carbon injector 4a, a fluorescence analyzer 7 provided on the upstream of the activated carbon injector 4a, and a flowing water flowmeter 6. An activated carbon injection rate necessary to reduce a trihalomethane formation potential is calculated by an activated carbon injection rate calculating apparatus 8 based on a measured value from the fluorescence analyzer 7. An activated carbon injection amount from the activated carbon injector 4a is controlled by an activated carbon injection amount control apparatus 9 based on the activated carbon injection rate and a measured value from the flowing water flowmeter 6.Type: ApplicationFiled: January 11, 2006Publication date: May 25, 2006Applicant: Kabushiki Kaisha ToshibaInventors: Seiichi Murayama, Futoshi Kurokawa, Masao Kaneko, Kotaro Iyasu, Kenji Taguchi, Kie Kubo, Shojiro Tamaki, Akira Hiramoto, Takumi Hayashi, Nobuyoshi Kaiga
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Patent number: 7014752Abstract: A water treatment control system for minimizing trihalomethane formation includes chlorine injection equipment having a plurality of chlorine injectors (11d, 12, 13), a fluorescence analyzer 7 provided on the upstream of the chlorine injectors, and a water flowmeter 6. An chlorine injection rate necessary to reduce a trihalomethane formation potential is calculated by a chlorine injection rate calculating apparatus 14a based on a measured value from the fluorescence analyzer 7. An chlorine injection amount from the chlorine injectors is controlled by chlorine injection amount control apparatuses 15a–15c based on the chlorine injection rate and a measured value from the flowing water flowmeter 6.Type: GrantFiled: August 14, 2003Date of Patent: March 21, 2006Assignee: Kabushiki Kaisha ToshibaInventors: Seiichi Murayama, Futoshi Kurokawa, Masao Kaneko, Kotaro Iyasu, Kenji Taguchi, Kie Kubo, Shojiro Tamaki, Akira Hiramoto, Takumi Hayashi, Nobuyoshi Kaiga
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Patent number: 6921476Abstract: A UV-assisted advanced-ozonation water treatment system comprises a water treating tank 1, an ozonic water tank 2, an ozonized gas generator 3, and a UV light source 4 disposed in the water treating tank 1 and having a UV-radiating surface 4a, and an ozonic water jetting device including jetting nozzles 5 for jetting the ozonic water onto the UV-radiating surface of the UV light source. An ozonized gas diffusing device 12 is placed in the ozonic water tank 2. An ozonized gas generated by the ozonized gas generator 3 and compressed by a compressor 13 at a pressure in the range of about 2 to about 3 kg/cm2 is diffused into the ozonic water tank 2 by the ozonized gas diffusing device 12. A high-pressure, a high-ozone-concentration ozonic water produced in the ozonized water tank 2 is jetted through the jetting nozzles 5 onto the UV-radiating surface 4a.Type: GrantFiled: August 20, 2003Date of Patent: July 26, 2005Assignee: Kabushiki Kaisha ToshibaInventors: Norimitsu Abe, Setsuo Suzuki, Seiichi Murayama, Kotaro Iyasu, Kie Kubo, Kenji Taguchi
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Patent number: 6811923Abstract: Positive electrode active material for nonaqueous electrolytic solution secondary batteries is made of a metal oxide. A content of coarse particles, of which particles sizes are 600% or more with respect to an average particle size of the metal oxide, is 1% or less by volume, and a content of high density particles, of which densities are 150% or more with respect to an average density of the metal oxide, is 1000 ppm or less. By using the positive electrode active material, battery characteristics and a manufacturing yield may be improved.Type: GrantFiled: February 20, 2002Date of Patent: November 2, 2004Assignee: Kabushiki Kaisha ToshibaInventors: Ryo Sakai, Yasuhiro Shirakawa, Kotaro Iyasu, Nobukazu Suzuki, Hisayasu Mitsui
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Publication number: 20040045880Abstract: A water treatment control system using a fluorescence analyzer includes an activated carbon injection equipment 4 having an activated carbon injector 4a, a fluorescence analyzer 7 provided on the upstream of the activated carbon injector 4a, and a flowing water flowmeter 6. An activated carbon injection rate necessary to reduce a trihalomethane formation potential is calculated by an activated carbon injection rate calculating apparatus 8 based on a measured value from the fluorescence analyzer 7. An activated carbon injection amount from the activated carbon injector 4a is controlled by an activated carbon injection amount control apparatus 9 based on the activated carbon injection rate and a measured value from the flowing water flowmeter 6.Type: ApplicationFiled: August 14, 2003Publication date: March 11, 2004Applicant: Kabushiki Kaisha ToshibaInventors: Seiichi Murayama, Futoshi Kurokawa, Masao Kaneko, Kotaro Iyasu, Kenji Taguchi, Kie Kubo, Shojiro Tamaki, Akira Hiramoto, Takumi Hayashi, Nobuyoshi Kaiga
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Publication number: 20040045886Abstract: A UV-assisted advanced-ozonation water treatment system comprises a water treating tank 1, an ozonic water tank 2, an ozonized gas generator 3, and a UV light source 4 disposed in the water treating tank 1 and having a UV-radiating surface 4a, and an ozonic water jetting device including jetting nozzles 5 for jetting the ozonic water onto the UV-radiating surface of the UV light source. An ozonized gas diffusing device 12 is placed in the ozonic water tank 2. An ozonized gas generated by the ozonized gas generator 3 and compressed by a compressor 13 at a pressure in the range of about 2 to about 3 kg/cm2 is diffused into the ozonic water tank 2 by the ozonized gas diffusing device 12. A high-pressure, a high-ozone-concentration ozonic water produced in the ozonized water tank 2 is jetted through the jetting nozzles 5 onto the UV-radiating surface 4a.Type: ApplicationFiled: August 20, 2003Publication date: March 11, 2004Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Norimitsu Abe, Setsuo Suzuki, Seiichi Murayama, Kotaro Iyasu, Kie Kubo, Kenji Taguchi
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Patent number: 6638421Abstract: A water treatment control system using a fluorescence analyzer includes an activated carbon injection equipment 4 having an activated carbon injector 4a, a fluorescence analyzer 7 provided on the upstream of the activated carbon injector 4a, and a flowing water flowmeter 6. An activated carbon injection rate necessary to reduce a trihalomethane formation potential is calculated by an activated carbon injection rate calculating apparatus 8 based on a measured value from the fluorescence analyzer 7. An activated carbon injection amount from the activated carbon injector 4a is controlled by an activated carbon injection amount control apparatus 9 based on the activated carbon injection rate and a measured value from the flowing water flowmeter 6.Type: GrantFiled: November 29, 2001Date of Patent: October 28, 2003Assignee: Kabushiki Kaisha ToshibaInventors: Seiichi Murayama, Futoshi Kurokawa, Masao Kaneko, Kotaro Iyasu, Kenji Taguchi, Kie Kubo, Shojiro Tamaki, Akira Hiramoto, Takumi Hayashi, Nobuyoshi Kaiga
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Publication number: 20020104787Abstract: A water treatment control system using a fluorescence analyzer includes an activated carbon injection equipment 4 having an activated carbon injector 4a, a fluorescence analyzer 7 provided on the upstream of the activated carbon injector 4a, and a flowing water flowmeter 6. An activated carbon injection rate necessary to reduce a trihalomethane formation potential is calculated by an activated carbon injection rate calculating apparatus 8 based on a measured value from the fluorescence analyzer 7. An activated carbon injection amount from the activated carbon injector 4a is controlled by an activated carbon injection amount control apparatus 9 based on the activated carbon injection rate and a measured value from the flowing water flowmeter 6.Type: ApplicationFiled: November 29, 2001Publication date: August 8, 2002Inventors: Seiichi Murayama, Futoshi Kurokawa, Masao Kaneko, Kotaro Iyasu, Kenji Taguchi, Kie Kubo, Shojiro Tamaki, Akira Hiramoto, Takumi Hayashi, Nobuyoshi Kaiga
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Patent number: 6410177Abstract: Each of gas manifolds which are disposed on the side surfaces of a cell stack 10 is constituted by integrating a plate-like heat insulating member 21 disposed on the outer surface of the cell stack 10 and a heat and phosphoric acid resisting sheet member 20 joined to cover the inner and side surfaces of the heat insulating member 21.Type: GrantFiled: April 28, 2000Date of Patent: June 25, 2002Assignee: Kabushiki Kaisha ToshibaInventors: Kotaro Iyasu, Yoshitsugu Gocho, Yoshihiro Moriyama, Akio Kano, Kazuhisa Tanaka
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Patent number: 6245454Abstract: Gas manifolds which are excellent in both phosphoric acid proof and electric insulation and which have sufficient corrosion proof over a long period are provided. A resin sheet with high phosphoric acid proof is folded to have a size smaller than that of the corner sections of the inner plane of gas manifolds by the size corresponding to a thermal expansion, and the folded planes are thermally compressed in air tight to form box-shaped linings. These linings are applied to the inner planes of the gas manifolds. Patches are thermally compressed to the outer surface of the bottom section of the linings and each patch is fitted loosely with a male hook or a female hook. A female hook or a male hook for engaging with the hook on each patch is fitted on the inner plane of the gas manifolds at an opposing position. The linings can be fixed to the gas manifolds engageably and disengageably by these hooks.Type: GrantFiled: August 6, 1999Date of Patent: June 12, 2001Assignee: Kabushiki Kaisha ToshibaInventors: Yoshitsugu Gocho, Kotaro Iyasu, Yoshiyuki Abiru, Toshio Konno