Patents by Inventor Masanori Fukutani
Masanori Fukutani 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: 7074309Abstract: A heater is inserted into an inside chamber of a sensor element until a tip end of the heater is surely brought into contact with a bottom surface of the inside chamber. Next, a metallic holder is attached on an outside surface of the heater. Then, the metallic holder is slid along the outside surface of the heater toward the bottom surface of the sensor element to engage the metallic holder with an edge of the sensor element.Type: GrantFiled: January 2, 2003Date of Patent: July 11, 2006Assignee: Denso CorporationInventors: Isao Watanabe, Michihiro Yamakawa, Masanori Fukutani
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Publication number: 20030101569Abstract: A heater is inserted into an inside chamber of a sensor element until a tip end of the heater is surely brought into contact with a bottom surface of the inside chamber. Next, a metallic holder is attached on an outside surface of the heater. Then, the metallic holder is slid along the outside surface of the heater toward the bottom surface of the sensor element to engage the metallic holder with an edge of the sensor element.Type: ApplicationFiled: January 2, 2003Publication date: June 5, 2003Applicant: DENSO CORPORATIONInventors: Isao Watanabe, Michihiro Yamakawa, Masanori Fukutani
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Patent number: 6527928Abstract: A heater is inserted into an inside chamber of a sensor element until a tip end of the heater is surely brought into contact with a bottom surface of the inside chamber. Next, a metallic holder is attached on an outside surface of the heater. Then, the metallic holder is slid along the outside surface of the heater toward the bottom surface of the sensor element to engage the metallic holder with an edge of the sensor element.Type: GrantFiled: July 26, 1999Date of Patent: March 4, 2003Assignee: Denso CorporationInventors: Isao Watanabe, Michihiro Yamakawa, Masanori Fukutani
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Publication number: 20010040092Abstract: A sensing element has a cup-shaped solid electrolytic body with one end closed and an inside space serving as a reference gas chamber, a sensing electrode provided on an outer surface of the solid electrolytic body so as to be exposed to measured gas, and a reference electrode provided on an inner surface of the solid electrolytic body so as to be exposed to reference gas in the reference gas chamber. A heater is disposed in the reference gas chamber. The solid electrolytic body has a leg consisting of a proximal portion and a distal portion. The distal portion is thinner than the proximal portion. And, the heater is brought into contact with a surface defining the reference gas chamber at least partly in the region of the distal portion.Type: ApplicationFiled: May 14, 2001Publication date: November 15, 2001Inventors: Takanori Yanagisawa, Nobuyuki Tsuji, Masanori Fukutani, Takao Mishima
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Patent number: 6258234Abstract: Air fuel ratio sensor for use in an exhaust gas purification system for an internal combustion engine. The sensor has an outer and inner cover 12 and 13 for protection of lead wires 16, 18 and 19 to a detecting element 3 and a heater 5 of the sensor, a rubber seal for 2 for obtaining a sealing between the covers and the lead wires and a water repellent filter 36 for obtaining a seal between the inner and outer covers 12 and 13, while keeping an air ventilation capability of the space inside the covers. For receiving the lead wires 16, 18 and 19, the seal 2 is formed with holes 20 such that the minimum thickness between the holes and the minimum thickness between the hole and an outer surface of the seal is 1 mm or more. A crimping of the outer cover 12 is done so that a deformation of the seal 2 in a range between 10 to 20% of the outer diameter is obtained.Type: GrantFiled: March 31, 2000Date of Patent: July 10, 2001Assignee: Denso CorporationInventors: Isao Watanabe, Michihiro Yamakawa, Masanori Fukutani, Toshihiro Sakawa, Nobuyuki Tsuji, Minoru Ohta
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Patent number: 6178806Abstract: An air fuel ratio sensor for use in an exhaust gas purification system for an internal combustion engine. The sensor has an outer and inner cover 12 and 13 for protection of lead wires 16, 18 and 19 to a detecting element 3 and a heater of the sensor, a rubber seal 2 for obtaining a seal between the covers and the lead wires and a water repellent filter 36 for obtaining a seal between the inner and outer covers 12 and 13, while keeping an air ventilation capability of the space inside the covers. For receiving the lead wires 16, 18 and 19, the seal 2 is formed with holes 20 such that the minimum thickness between the hole and an outer surface of the seal is 1 mm or more. A crimping of the outer cover 12 is done so that a deformation of the seal 2 in a range between 10 to 20% of the outer diameter is obtained.Type: GrantFiled: September 24, 1998Date of Patent: January 30, 2001Assignee: Denso CorporationInventors: Isao Watanabe, Masanori Fukutani, Nobuyuki Tsuji, Minoru Ohta
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Patent number: 5956841Abstract: A heater is inserted into an inside chamber of a sensor element until a tip end of the heater is surely brought into contact with a bottom surface of the inside chamber. Next, a metallic holder is attached on an outside surface of the heater. Then, the metallic holder is slid along the outside surface of the heater toward the bottom surface of the sensor element to engage the metallic holder with an edge of the sensor element.Type: GrantFiled: January 24, 1997Date of Patent: September 28, 1999Assignee: Denso CorporationInventors: Isao Watanabe, Michihiro Yamakawa, Masanori Fukutani
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Patent number: 5874664Abstract: Air fuel ratio sensor for use in an exhaust gas purification system for an internal combustion engine. The sensor has an outer and inner cover 12 and 13 for protection of lead wires 16, 18 and 19 to a detecting element 3 and a heater 5 of the sensor, a rubber seal for 2 for obtaining a sealing between the covers and the lead wires and a water repellent filter 36 for obtaining a seal between the inner and outer covers 12 and 13, while keeping an air ventilation capability of the space inside the covers. For receiving the lead wires 16, 18 and 19, the seal 2 is formed with holes 20such that the minimum thickness between the holes and the minimum thickness between the hole and an outer surface of the seal is 1 mm or more. A crimping of the outer cover 12 is done so that a deformation of the seal 2 in a range between 10 to 20% of the outer diameter is obtained.Type: GrantFiled: January 29, 1997Date of Patent: February 23, 1999Assignee: Denso CorporationInventors: Isao Watanabe, Michihiro Yamakawa, Masanori Fukutani, Toshihiro Sakawa, Nobuyuki Tsuji, Minoru Ohta
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Patent number: 5602384Abstract: A sunlight sensor for use in control of vehicle air conditioners, and provides which detects the sunlight thermal load. A light-cutoff film is formed on the upper surface of the transparent substrate (intermediate element) of the light-sensing element, and at the center of this light-cutoff film is formed a light-guiding hole. Left and right light-detection sections and are formed on the lower surface of the transparent substrate.Type: GrantFiled: September 20, 1994Date of Patent: February 11, 1997Assignee: Nippondenso Co., Ltd.Inventors: Naochika Nunogaki, Makoto Shirai, Manabu Yamada, Yutaka Maeda, Masaya Nakamura, Masanori Fukutani, Katsuhide Akimoto
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Patent number: 4843882Abstract: In a direct-heated flow measuring apparatus including a film resistor having a substrate supported by a supporting member in a passage, at least one face of the substrate on the upstream side thereof is sloped with respect to a fluid stream within the passage.Type: GrantFiled: July 25, 1988Date of Patent: July 4, 1989Assignee: Nippon Soken, Inc.Inventors: Minoru Ohta, Michitoshi Onoda, Kazuhiko Miura, Seizi Huzino, Tadashi Hattori, Kenji Kanehara, Masanori Fukutani
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Patent number: 4695301Abstract: A porous ceramic monolith for use as a filter (1) for Diesel exhaust gases has inlet bores (61) closed at an outlet end (8) of the filter (1) and outlet bores (62) closed at an inlet end (7) of the filter. The inlet and outlet bores (61 and 62) are interlaced with each other and separated from each other by porous partition walls (3) each having gas-permeable pores therein. The inlet and outlet bores have open ends (9) diverged axialy outwardly of the bores to increase opening ratio in each end of the filter (1) thereby decreasing the pressure loss across the filter.Type: GrantFiled: February 10, 1986Date of Patent: September 22, 1987Assignee: Nippondenso Co., Ltd.Inventors: Atushi Okajima, Hitoshi Yoshida, Yukihisa Takeuchi, Masanori Fukutani
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Patent number: 4632683Abstract: An exhaust gas purifying filter having a multiplicity of inward being open at the one axial end and blocked at the other axial end, a multiplicity of outward passages parallel to the axis of the filter, the outward passages being open at one axial end and blocked at the other axial end, and having porous partition walls placed between the inward passages and the outward passages and separating the inward passages and the outward passages from one another, which is characterized in that the surface of the partition wall exposed to at least the inward passage has superficial pores communicating with internal pores in the partition wall, the superficial pores being composed of small pores having a diameter of 5 to 40 .mu.m and large pores having a diameter of 40 to 100 .mu.m, the number of the small pores being 5 to 40 times that of said large pores and production of the same.Type: GrantFiled: November 21, 1985Date of Patent: December 30, 1986Assignee: Nippondenso Co., Ltd.Inventors: Masanori Fukutani, Naoto Miwa, Kazuyuki Ito, Keiji Ito
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Patent number: 4519820Abstract: Filter apparatus having a honeycomb structure and a heater for purifying exhaust gases consists of cells or passages defined by porous partition walls. Alternate passages are provided respectively with upstream plugs and downstream plugs. Particulates in exhaust gases are trapped in the honeycomb structure and ignited by the heater. The upstream plugs define spaces upstream thereof in which particulates are trapped in addition to those trapped in the passages having downstream plugs. The heat of burning of the particulates trapped in the spaces facilitates the burning of the particulates trapped in the passages having downstream plugs. Therefore, the exhaust gas particulates trapped and collected in the downstream portion of the structure can also be easily burned to regenerate the structure over its entire length.Type: GrantFiled: August 3, 1983Date of Patent: May 28, 1985Assignee: Nippondenso Co., Ltd.Inventors: Kazuo Oyobe, Etsuji Nomura, Kazuma Matsui, Masanori Fukutani, Kazuyuki Ito, Naoto Miwa, Keiji Ito