Patents by Inventor Kenji Negishi
Kenji Negishi 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: 20240076754Abstract: A molten iron refining method having, an auxiliary material, and an oxidizing gas supplied through a top-blowing lance, to a cold iron source and molten pig iron that are contained/fed in a converter-type vessel, and molten iron is subjected to a refining process. A pre-charged cold iron source is charged into the converter-type vessel at an amount not larger than 0.15 times. A furnace-top-added cold iron source that's part or all of the cold iron source and added from a furnace top is fed during the refining process. A burner at a leading end of the top-blowing lance that spray holes through which a fuel and a combustion-supporting gas are ejected. During the refining process, a powdery auxiliary material processed into powder that's part of the auxiliary material is blown in, to pass through a flame formed by the burner.Type: ApplicationFiled: December 21, 2021Publication date: March 7, 2024Applicant: JFE STEEL CORPORATIONInventors: Futoshi OGASAWARA, Hidemitsu NEGISHI, Kenji NAKASE, Shota AMANO, Yumi MURAKAMI, Rei YOKOMORI, Yudai HATTORI, Ryo KAWABATA, Naoki KIKUCHI
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Publication number: 20240076755Abstract: A method that, regarding a process of refining molten iron, can increase the thermal margin and the amount of cold iron source to be used. A burner having jetting holes for jetting a fuel and a combustion supporting gas is provided at a leading end part of one lance that top-blows an oxidizing gas to molten iron contained in a converter-type vessel, or at a leading end part of another separate lance. A powdery auxiliary raw material or an auxiliary raw material processed into a powder form that is blown into the molten iron from the one lance or the other lance passes through a flame formed by the burner. This top-blowing lance for a converter is configured to secure a predetermined heating time and powder-fuel ratio. Also, a method for adding an auxiliary raw material and a method for refining of molten iron that use this top-blowing lance.Type: ApplicationFiled: December 2, 2021Publication date: March 7, 2024Applicant: JFE STEEL CORPORATIONInventors: Shota AMANO, Hidemitsu NEGISHI, Yumi MURAKAMI, Futoshi OGASAWARA, Kenji NAKASE
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Publication number: 20240068060Abstract: Proposed is a molten iron refining method capable of securing an in-flame staying time period of a heat transfer medium without being influenced by height adjustments of a blowing-purpose oxygen-blowing lance. As far as to a position lower than an upper end inside a converter-type vessel 1, a blowing-purpose oxygen-blowing lance 3 that supplies oxidizing gas and is capable of ascending and descending and at least one burner lance 4 capable of ascending and descending independently of the blowing-purpose oxygen-blowing lance are inserted. From the blowing-purpose oxygen-blowing lance, either oxidizing gas or oxidizing gas and CaO-containing refining agent are blown onto the molten iron. Also, a flame is formed by causing the burner lance to discharge fuel gas and combustion supporting gas. Powder particles discharged from the burner lance are caused to pass through the flame and to be blown onto the molten iron in a heat-transferred state, so that the molten iron is thermally compensated.Type: ApplicationFiled: December 9, 2021Publication date: February 29, 2024Applicant: JFE STEEL CORPORATIONInventors: Hidemitsu NEGISHI, Shota AMANO, Yumi MURAKAMI, Futoshi OGASAWARA, Kenji NAKASE
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Patent number: 6766109Abstract: A camera casing of the present invention is an integral two-color molded product whose case main body (32) consists of a transparent rigid resin layer (32a) and an opaque rigid resin layer (32b). Essential parts of the camera are exposed through the transparent resin layer (32a), so the camera may be operated from outside the casing. The casing is collected and melted as a whole without discriminating between the transparent rigid resin and the opaque rigid resin, to be recycled as a material for the opaque resin layer (32b) when the case main body is newly formed by two-color injection molding.Type: GrantFiled: March 13, 2003Date of Patent: July 20, 2004Assignee: Fuji Photo Film Co., Ltd.Inventors: Kenji Negishi, Keiji Uchiyama, Mitsuro Kamata, Toshio Sata
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Patent number: 6634744Abstract: An ink-jet printer comprises: a recording head to eject ink through a nozzle; a conveying element located so as to face the recording head and conveying a recording medium onto which an image is recorded employing the recording head; and a recording medium expansion and contraction-preventing means provided at a contacting portion where the conveying element contacts the recording medium.Type: GrantFiled: March 14, 2002Date of Patent: October 21, 2003Assignee: Konica CorporationInventors: Nobuya Yamamoto, Kenji Negishi, Hiroya Kimoto, Takayuki Katoh, Hiroyuki Honda
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Publication number: 20030170015Abstract: A camera casing-of the present invention is an integral two-color molded product whose case main body (32) consists of a transparent rigid resin layer (32a) and an opaque rigid resin layer (32b). Essential parts of the camera are exposed through the transparent resin layer (32a), so the camera may be operated from outside the casing. The casing is collected and melted as a whole without discriminating between the transparent rigid resin and the opaque rigid resin, to be recycled as a material for the opaque resin layer (32b) when the case main body is newly formed by two-color injection molding.Type: ApplicationFiled: March 13, 2003Publication date: September 11, 2003Applicant: FUJI PHOTO FILM CO., LTD.Inventors: Kenji Negishi, Keiji Uchiyama, Mitsuro Kamata, Toshio Sata, Machiko Sata, Kazuyoshi Sata, Akio Sata
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Patent number: 6597865Abstract: By pushing down a shutter release operation member (9), that is mounted on a front of a waterproof case of a waterproof type lens-fitted photo film unit, a release lever (70) is caused to rotate through a rotary shaft (71) that is put through a front wall of the waterproof case. Thereby, the release lever directly pushes an arresting member (59) through an opening (19c) provided on a front side of a unit body (3), releasing a shutter drive member (51) as having been arrested in a cocked position by the arresting member (59), and thus causing a shutter blade (45) to make an open-close movement. The waterproof case consists of a pair of case members that are put on the unit body from its front and rear sides, and are joined to each other by engagement. An elastic waterproof ring is force-fitted in a gap of the joint between the case members.Type: GrantFiled: May 25, 2001Date of Patent: July 22, 2003Assignee: Fuji Photo Film Co., Ltd.Inventors: Kenji Negishi, Hirofumi Katsura
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Patent number: 6567614Abstract: A camera casing of the present invention is an integral two-color molded product whose case main body (32) consists of a transparent rigid resin layer (32a) and an opaque rigid resin layer (32b). Essential parts of the camera are exposed through the transparent resin layer (32a), so the camera may be operated from outside the casing. The casing is collected and melted as a whole without discriminating between the transparent rigid resin and the opaque rigid resin, to be recycled as a material for the opaque resin layer (32b) when the case main body is newly formed by two-color injection molding.Type: GrantFiled: April 11, 2001Date of Patent: May 20, 2003Assignee: Fuji Photo Film Co., Ltd.Inventors: Kenji Negishi, Keiji Uchiyama, Mitsuro Kamata, Toshio Sata
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Patent number: 6483991Abstract: A tablet shaped catalyst is disposed on an upper portion inside a waterproof housing. The catalyst, which is comprised of palladium, accelerates a chemical reaction for combining hydrogen gas and oxygen gas. The catalyst begins accelerating the chemical reaction just after contacting with hydrogen gas. By disposing said catalyst on an upper position inside the waterproof housing, hydrogen gas, lighter than the air, is effectively removed. This chemical reaction causes to generate water, so it is preferable to provide a water absorbent by the catalyst.Type: GrantFiled: January 29, 2001Date of Patent: November 19, 2002Assignee: Fuji Photo Film Co., Ltd.Inventors: Keiji Uchiyama, Kenji Negishi, Yukito Suzuki
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Publication number: 20020154202Abstract: An ink-jet printer comprises: a recording head to eject ink through a nozzle; a conveying means located so as to face the recording head and conveying a recording medium onto which an image is recorded employing the recording head; and a recording medium expansion and contraction-preventing means provided at a contacting portion where the conveying means contacts the recording medium.Type: ApplicationFiled: March 14, 2002Publication date: October 24, 2002Inventors: Nobuya Yamamoto, Kenji Negishi, Hiroya Kimoto, Takayuki Katoh, Hiroyuki Honda
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Publication number: 20010005452Abstract: A tablet shaped catalyst is disposed on an upper portion inside a waterproof housing. The catalyst, which is comprised of palladium, accelerates a chemical reaction for combining hydrogen gas and oxygen gas. The catalyst begins accelerating the chemical reaction just after contacting with hydrogen gas. By disposing said catalyst on an upper position inside the waterproof housing, hydrogen gas, lighter than the air, is effectively removed. This chemical reaction causes to generate water, so it is preferable to provide a water absorbent by the catalyst.Type: ApplicationFiled: January 29, 2001Publication date: June 28, 2001Applicant: Fuji Photo Film Co., Ltd.Inventors: Keiji Uchiyama, Kenji Negishi, Yukito Suzuki
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Patent number: 5923904Abstract: A lens fitted film unit having a film cartridge with a flat portion with a film egress/ingress slot, and a light-tight film unit case for receiving therein the film cartridge with the flat portion in alignment with a plane perpendicular to an optical axis of a taking lens of a film unit. This alignment of the flat portion of the film cartridge reduces the thickness of the film unit.Type: GrantFiled: February 21, 1997Date of Patent: July 13, 1999Assignee: Fuji Photo Film Co., Ltd.Inventor: Kenji Negishi
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Patent number: 5752086Abstract: A lens-fitted photo film unit has a cassette containing chamber and a photo film roll chamber. The cassette containing chamber contains a cassette. The cassette has a spool and a cassette shutter. A photo film is secured to the spool contained in the cassette in a rotatable manner. The cassette shutter is incorporated in a rotatable manner between a closed position to block a photo film passage port and an open position to open the photo film passage port. The lens-fitted photo film unit has a rotatable photo film winding wheel, of which a wheel portion is disposed above the cassette containing chamber, and externally rotated after a frame on the photo film is exposed. A first rotational shaft projects downwards from the wheel portion, and is engaged with the spool through a top wall of the cassette containing chamber. The wheel portion is rotated to wind the photo film into the cassette.Type: GrantFiled: February 28, 1997Date of Patent: May 12, 1998Assignee: Fuji Photo Film Co., Ltd.Inventors: Kenji Negishi, Osamu Noguchi, Kazuo Okoyama
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Patent number: 5717551Abstract: A magnetic head having a control portion provided integrally with an opposing surface located opposing the recording surface of a magnetic disc or a head mount for generating a negative pressure between the control portion and the magnetic disc to attract the magnetic disc towards the magnetic head, thereby generating an adequate and sufficient negative pressure in the vicinity of the magnetic head and achieving a good head touch. This configuration enables compact design of the mechanism and an increased recording area of the magnetic disc compared with the case in which a magnetic head and a negative pressure generation type stabilizing plate to attract the magnetic disc towards the magnetic head are separately disposed, and eliminates the need for procedures for separate positioning of the individual magnetic head and stabilizing plate, thereby achieving a considerable reduction in manufacturing steps and production cost.Type: GrantFiled: May 18, 1995Date of Patent: February 10, 1998Assignee: Fuji Photo Film Co., Ltd.Inventors: Kenji Negishi, Daisuke Mitsuhashi, Yoshiaki Kato, Akira Takimoto, Noboru Kawasaki
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Patent number: 5669016Abstract: A lens-fitted photo film unit has a housing (2), in which a photo film roll chamber and a cassette containing chamber (8, 70) are formed. A cassette incorporates a port shutter (14) rotatable between a closed position of closing a photo film passage port and an open position of opening the passage port. The photo film is wound into the cassette as much as one frame each time one frame is exposed. The cassette is removed from the cassette containing chamber after winding the photo film entirely into the cassette. Through an exit opening, the cassette containing chamber is open externally. An openable bottom lid (7, 66, 75, 80) closes the exit opening, is opened for the removal of the cassette. A rotating mechanism (30, 76, 87, 93; 34, 78, 88, 90; 35, 50, 60, 72, 85) is engaged with the port shutter through a top wall (8a, 70a) of the cassette containing chamber, rotates the port shutter from the open position to the closed position in response to operation opening the bottom lid.Type: GrantFiled: May 13, 1996Date of Patent: September 16, 1997Assignee: Fuji Photo Film Co., Ltd.Inventors: Kenji Negishi, Osamu Noguchi, Shinsuke Aoshima, Kazuo Kamata
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Patent number: 5047884Abstract: A magnetic head having a control portion provided integrally with an opposing surface located opposing the recording surface of a magnetic disc or a head mount for generating a negative pressure between the control portion and the magnetic disc to attract the magnetic disc towards the magnetic head, thereby generating an adequate and sufficient negative pressure in the vicinity of the magnetic head and achieving a good head touch. This configuration enables compact design of the mechanism and an increased recording area of the magnetic disc compared with the case in which a magnetic head and a negative pressure generation type stabilizing plate to attract the magnetic disc towards the magnetic head are separately disposed, and eliminates the need for procedures for separate positioning of the individual magnetic head and stabilizing plate, thereby achieving a considerable reduction in manufacturing steps and production cost.Type: GrantFiled: January 5, 1990Date of Patent: September 10, 1991Assignee: Fuji Photo Film Co., Ltd.Inventors: Kenji Negishi, Daisuke Mitsuhashi, Yoshiaki Kato, Akira Takimoto, Noboru Kawasaki
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Patent number: 4996619Abstract: A mechanism for supporting a head carriage provided with a magnetic head to magnetically record still image information or the like into a magnetic disc or reproduce such information therefrom. In the support mechanism, the two ends of a lead screw having a threaded portion almost in the center portion thereof are respectively received by two bearings each having two, substantially perpendicularly intersecting surfaces, and the head carriage, which can be guided and moved by the lead screw, is also provided with two, substantially perpendicularly intersecting surfaces touchable with a shaft of the lead screw. By energizing the head carriage in a given direction by a spring, the head carriage two intersecting surfaces can be brought into contact with the lead screw and the lead screw can be brought into contact with the intersecting surfaces of the respective bearings.Type: GrantFiled: September 6, 1989Date of Patent: February 26, 1991Assignee: Fuji Photo Film Co., Ltd.Inventors: Kenji Negishi, Hidemi Sasaki, Takeshi Fujishiro
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Patent number: 4873598Abstract: A mechanism for supporting a head carriage provided with a magnetic head to magnetically record still image information or the like into a magnetic disc or reproduce such information therefrom. In the support mechanism, the two ends of a lead screw having a threaded portion almost in the center portion thereof are respectively received by two bearings each having two, substantially perpendicularly intersecting surfaces, and the head carriage, which can be guided and moved by the lead screw, is also provided with two, substantially perpendicularly intersecting surfaces touchable with a shaft of the lead screw. By energizing the head carriage in a given direction by a spring, the head carriage's two intersecting surfaces can be brought into contact with the lead screw, and the lead screw can be brought into contact with the intersecting surfaces of the respective bearings.Type: GrantFiled: January 27, 1988Date of Patent: October 10, 1989Assignee: Fuji Photo Film Co., Ltd.Inventors: Kenji Negishi, Hidemi Sasaki, Takeshi Fujishiro
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Patent number: 4819302Abstract: A clearer mechanism for a draft roller, a clearer holder supporting a clearer member therein, and a suspensory member suspended from the draft roller and detachably supporting the clearer holder such that the clearer member is held against a working periphery of the draft roller. The mechanism further includes an actuating member or a restraining member projecting from either of the clearer holder and the suspensory member for displacing the actuating member or the restraining member to thereby reciprocally move the clearer holder along the working periphery of the draft roller.Type: GrantFiled: February 22, 1988Date of Patent: April 11, 1989Assignees: Kabushiki Kaisha Toyoda Jidoshokki Seisakusho, Kanpatsu Kogyo Kabushiki KaishaInventors: Tatemi Fukuda, Yoshio Kawasaki, Masao Wakai, Kenji Negishi, Isao Ono, Isao Arita
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Patent number: 4785507Abstract: A retainer frame supportiing pat type clearer members is arranged in opposed relation to a draft roller. The retainer frame is inserted at both longitudinal end portions thereof into insert grooves of supporting brackets mounted on roller stands or draft roller bearing members placed on the roller stands. The retainer frame is formed by folding a metal plate. Each of the clearer members is formed with stopper lugs at both side edges thereof. With this arrangement, each clearer member may be easily installed into the retainer frame, and a uniform projection of the clearer member from the retainer frame may be maintained.Type: GrantFiled: July 21, 1987Date of Patent: November 22, 1988Assignees: Kabushiki Kaisha Toyoda Jidoshokki Seisakusho, Kanpatsu Kogyo Kabishiki KaishaInventors: Tsutomu Miyazaki, Yoshio Kawasaki, Kenji Negishi, Masao Wakai, Isao Ono, Isao Arita