Patents by Inventor Shinobu Obata
Shinobu Obata 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: 9358804Abstract: According to the present disclosure, a manufacturing method of a fine wiring pattern is disclosed. The manufacturing method includes preparing a support member, forming a first layer on the support member by thick-film printing, and forming a second layer including Ag on the first layer by the thick-film printing. The method also includes forming a predetermined fine wiring pattern by performing an etching process upon the first layer and the second layer.Type: GrantFiled: January 30, 2015Date of Patent: June 7, 2016Assignee: Rohm Co., Ltd.Inventors: Shinobu Obata, Koji Nishi, Takafumi Katsuno, Masumi Okumura, Nobuhito Kinoshita
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Patent number: 9352585Abstract: The object is to provide a thermal print head capable of improving printing quality on a medium. The Solution is to provide a base member 11 including a recess 113a, a heat storage region 2 formed in the recess 113a, a resistor layer 4 formed on the base member 11, and an electrode layer 3 formed on the base member 11 and electrically connected to the resistor layer 4. The resistor layer 4 includes a heating portion 41 spanned between two portions of the electrode layer 3 spaced from each other as viewed in a thickness direction Z of the base member 11. The heating portion 41 is located so as to overlap the recess 113a as viewed in the thickness direction Z. The base member 11 is made of a material having a thermal conductivity of 100 to 300 W/(m·K).Type: GrantFiled: December 28, 2015Date of Patent: May 31, 2016Assignee: ROHM CO., LTD.Inventors: Hideaki Hoki, Tomohiko Horikawa, Shinobu Obata, Tomoharu Horio, Minoru Sakamoto
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Publication number: 20160107452Abstract: The object is to provide a thermal print head capable of improving printing quality on a medium. The Solution is to provide a base member 11 including a recess 113a, a heat storage region 2 formed in the recess 113a, a resistor layer 4 formed on the base member 11, and an electrode layer 3 formed on the base member 11 and electrically connected to the resistor layer 4. The resistor layer 4 includes a heating portion 41 spanned between two portions of the electrode layer 3 spaced from each other as viewed in a thickness direction Z of the base member 11. The heating portion 41 is located so as to overlap the recess 113a as viewed in the thickness direction Z. The base member 11 is made of a material having a thermal conductivity of 100 to 300 W/(m·K).Type: ApplicationFiled: December 28, 2015Publication date: April 21, 2016Inventors: Hideaki HOKI, Tomohiko HORIKAWA, Shinobu OBATA, Tomoharu HORIO, Minoru SAKAMOTO
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Patent number: 9248663Abstract: The object is to provide a thermal print head capable of improving printing quality on a medium. The Solution is to provide a base member 11 including a recess 113a, a heat storage region 2 formed in the recess 113a, a resistor layer 4 formed on the base member 11, and an electrode layer 3 formed on the base member 11 and electrically connected to the resistor layer 4. The resistor layer 4 includes a heating portion 41 spanned between two portions of the electrode layer 3 spaced from each other as viewed in a thickness direction Z of the base member 11. The heating portion 41 is located so as to overlap the recess 113a as viewed in the thickness direction Z. The base member 11 is made of a material having a thermal conductivity of 100 to 300 W/(m·K).Type: GrantFiled: August 27, 2013Date of Patent: February 2, 2016Assignee: ROHM CO., LTD.Inventors: Hideaki Hoki, Tomohiko Horikawa, Shinobu Obata, Tomoharu Horio, Minoru Sakamoto
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Publication number: 20150251440Abstract: The object is to provide a thermal print head capable of improving printing quality on a medium. The Solution is to provide a base member 11 including a recess 113a, a heat storage region 2 formed in the recess 113a, a resistor layer 4 formed on the base member 11, and an electrode layer 3 formed on the base member 11 and electrically connected to the resistor layer 4. The resistor layer 4 includes a heating portion 41 spanned between two portions of the electrode layer 3 spaced from each other as viewed in a thickness direction Z of the base member 11. The heating portion 41 is located so as to overlap the recess 113a as viewed in the thickness direction Z. The base member 11 is made of a material having a thermal conductivity of 100 to 300 W/(m·K). Selected Figure is FIG. 6.Type: ApplicationFiled: August 27, 2013Publication date: September 10, 2015Inventors: Hideaki Hoki, Tomohiko Horikawa, Shinobu Obata, Tomoharu Horio, Minoru Sakamoto
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Patent number: 9125241Abstract: A heater (A1) includes a substrate (1), a heating resistor (2) formed on the substrate (1) and an electrode (3) electrically connected to the heating resistor (2) and containing a metal component. The heater (A1) further includes a diffusion prevention layer (4) which is held in contact with at least part of the electrode (3) and prevents the metal component from diffusing from the electrode (3). By preventing the diffusion of the metal component from the electrode (3) to the heating resistor (2), the separation of the heating resistor (2) and the electrode (3) is prevented.Type: GrantFiled: February 12, 2008Date of Patent: September 1, 2015Assignee: ROHM CO., LTD.Inventors: Yasuyuki Aritaki, Shinobu Obata, Teruhisa Sako
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Patent number: 9069296Abstract: A heater (A1) includes a substrate (1), a heating resistor (2) formed on the substrate (1) and a protective film (3) covering the heating resistor (2). The protective film (3) includes a crystallized glass layer (31) and an amorphous glass layer (33) covering the crystallized glass layer (31). The protective film (3) further includes a semi-crystalline glass layer (32) surrounding an edge (31a) of the crystallized glass layer (32). The semi-crystalline glass layer (32) intervenes between the substrate (1) and a portion of the amorphous glass layer (33) that projects relative to the crystallized glass layer (31).Type: GrantFiled: February 14, 2008Date of Patent: June 30, 2015Assignee: ROHM CO., LTD.Inventors: Yasuyuki Aritaki, Shinobu Obata, Teruhisa Sako
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Publication number: 20150138298Abstract: According to the present disclosure, a manufacturing method of a fine wiring pattern is disclosed. The manufacturing method includes preparing a support member, forming a first layer on the support member by thick-film printing, and forming a second layer including Ag on the first layer by the thick-film printing. The method also includes forming a predetermined fine wiring pattern by performing an etching process upon the first layer and the second layer.Type: ApplicationFiled: January 30, 2015Publication date: May 21, 2015Inventors: Shinobu Obata, Koji Nishi, Takafumi Katsuno, Masumi Okumura, Nobuhito Kinoshita
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Patent number: 8982169Abstract: According to the present disclosure, a manufacturing method of a fine wiring pattern is disclosed. The manufacturing method includes preparing a support member, forming a first layer on the support member by thick-film printing, and forming a second layer including Ag on the first layer by the thick-film printing. The method also includes forming a predetermined fine wiring pattern by performing an etching process upon the first layer and the second layer.Type: GrantFiled: January 23, 2013Date of Patent: March 17, 2015Assignee: Rohm Co., Ltd.Inventors: Shinobu Obata, Koji Nishi, Takafumi Katsuno, Masumi Okumura, Nobuhito Kinoshita
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Patent number: 8362401Abstract: A toner-fixing heater includes a substrate elongated in a first direction, a resistor formed on the substrate, a wiring portion connected with the resistor, and a protective film covering the resistor. The resistor includes two belt-like portions elongated in the first direction and spaced away from each other in a second direction perpendicular to the first direction. The resistor or the wiring portion includes a conductive portion for passing an electric current in the second direction. The conductive portion may have an edge extending in nonparallel to the first direction and the second direction, or may include a first layer and a second layer formed on the first layer, where the first layer is closer to the substrate than the second layer, and the edges of the second layer are located inward of the edges of the first layer as viewed in the first direction.Type: GrantFiled: August 26, 2008Date of Patent: January 29, 2013Assignee: Rohm Co., Ltd.Inventors: Yasuyuki Aritaki, Shinobu Obata, Teruhisa Sako
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Publication number: 20100038355Abstract: A heater (A1) includes a substrate (1), a heating resistor (2) formed on the substrate (1) and a protective film (3) covering the heating resistor (2). The protective film (3) includes a crystallized glass layer (31) and an amorphous glass layer (33) covering the crystallized glass layer (31). The protective film (3) further includes a semi-crystalline glass layer (32) surrounding an edge (31a) of the crystallized glass layer (32) The semi-crystalline glass layer (32) intervenes between the substrate (1) and a portion of the amorphous glass layer (33) that projects relative to the crystallized glass layer (31).Type: ApplicationFiled: February 14, 2008Publication date: February 18, 2010Applicant: Rohm Co., Ltd.Inventors: Yasuyuki Aritaki, Shinobu Obata, Teruhisa Sako
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Publication number: 20100032427Abstract: A heater (A1) includes a substrate (1), a heating resistor (2) formed on the substrate (1) and an electrode (3) electrically connected to the heating resistor (2) and containing a metal component. The heater (A1) further includes a diffusion prevention layer (4) which is held in contact with at least part of the electrode (3) and prevents the metal component from diffusing from the electrode (3). By preventing the diffusion of the metal component from the electrode (3) to the heating resistor (2), the separation of the heating resistor (2) and the electrode (3) is prevented.Type: ApplicationFiled: February 12, 2008Publication date: February 11, 2010Applicant: Rohm Co., LtdInventors: Yasuyuki Aritaki, Shinobu Obata, Teruhisa Sako
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Publication number: 20090321406Abstract: A fixing heater (A2) includes an insulating substrate (1), a heating resistor (2) formed on the substrate, and a pair of electrodes (4) each of which overlaps a respective one of two ends of the heating resistor. The heating resistor (2) contains Ag—Pd and crystallized glass. Each of the electrodes (4) contains glass of the same composition as the crystallized glass. When the proportion by weight of the crystallized glass in the heating resistor (2) is represented by x, the proportion y by weight of Pd in the Ag—Pd satisfies ?0.091x+0.50?y??0.091x+0.57.Type: ApplicationFiled: December 25, 2007Publication date: December 31, 2009Applicant: ROHM CO., LTDInventors: Yasuyuki Aritaki, Shinobu Obata, Teruhisa Sako
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Patent number: 7616223Abstract: A thermal printhead (A) according to the present invention includes a substrate (1) having an obverse surface on which a glaze layer (2) is formed, an electrode (4) formed on the glaze layer (2) and a clip connector (5) attached to an edge of the substrate (1) for connection to an external device and connected to the electrode (4) via solder (8). An input wiring portion (33) as a buffer layer is provided between the glaze layer (2) and the electrode (4), and the input wiring portion (33) protrudes from the electrode (4) at least at an end adjacent to the edge of the substrate (1).Type: GrantFiled: April 26, 2005Date of Patent: November 10, 2009Assignee: Rohm Co., Ltd.Inventors: Masaya Yamamoto, Shinobu Obata
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Patent number: 7538785Abstract: A thermal printhead (A1) includes electrodes (3a-3c) embedded in a glaze layer 2 at least at a portion laminated with a resistor (4). Favorably, the portion of the electrodes (3a-3c) laminated with the resistor (4) is sunk to a depth causing the surfaces of the electrodes to be flush with the surface of the glaze layer 2. Such structure enhances the heat transfer efficiency from a heating portion (40) of the resistor (4) to a thermal recording medium, and smooth transfer of thermal recording paper.Type: GrantFiled: May 23, 2005Date of Patent: May 26, 2009Assignee: Rohm Co., Ltd.Inventors: Masaya Yamamoto, Shinobu Obata
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Publication number: 20090073250Abstract: In a thermal printhead (A), a common wiring portion (4) is divided into a plurality of blocks (BL) arranged side by side in a primary scanning direction, and voltage is applied to opposite ends of each of the blocks (BL) in the primary scanning direction. A plurality of heating resistance sections (3) are divided into a plurality of blocks (BL?) corresponding to the blocks (BL) of the common wiring portion (4), and in each of the blocks (BL?), the resistance reduces as proceeding from opposite ends toward the center in the primary scanning direction. Therefore, the adjustment of the resistances of the plurality of heating resistance sections is easy, and the non-uniformity in darkness of print dots is reduced, so that high-quality image printing is possible.Type: ApplicationFiled: November 13, 2008Publication date: March 19, 2009Applicant: ROHM CO., LTD.Inventors: Masatoshi Nakanishi, Shinobu Obata
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Publication number: 20090065492Abstract: A toner-fixing heater includes a substrate elongated in a first direction, a resistor formed on the substrate, a wiring portion connected with the resistor, and a protective film covering the resistor. The resistor includes two belt-like portions elongated in the first direction and spaced away from each other in a second direction perpendicular to the first direction. The resistor or the wiring portion includes a conductive portion for passing an electric current in the second direction. The conductive portion may have an edge extending in nonparallel to the first direction and the second direction, or may include a first layer and a second layer formed on the first layer, where the first layer is closer to the substrate than the second layer, and the edges of the second layer are located inward of the edges of the first layer as viewed in the first direction.Type: ApplicationFiled: August 26, 2008Publication date: March 12, 2009Applicant: ROHM CO., LTD.Inventors: Yasuyuki Aritaki, Shinobu Obata, Teruhisa Sako
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Patent number: 7460143Abstract: A thermal printhead (A1) comprises an insulating substrate (1), a common electrode (31) which is formed on the insulating substrate (1) and includes a plurality of comb teeth (31a), a plurality of individual electrodes (41) formed on the insulating substrate (1), and a resistor layer (51) formed on the insulating substrate (1) and electrically connected to the comb teeth (31a) and the individual electrodes (41). The resistor layer (51) comprises a thin film, whereas the common electrode (31) and the individual electrodes (41) comprise a thick film.Type: GrantFiled: September 16, 2004Date of Patent: December 2, 2008Assignee: Rohm Co., Ltd.Inventors: Tadashi Yamamoto, Shinobu Obata, Kanjou Ishibashi
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Patent number: 7442318Abstract: A method of manufacturing a thermal print head includes a conductor layer formation step, a first measurement step, a conductor layer splitting step and a second measurement step. In the conductor layer formation step, a single conductor layer including first and second measurement points is formed on a substrate. In the first measurement step, the electrical resistance is measured in the conductor layer, between the first and the second measurement points. In the conductor layer splitting step, a predetermined portion of the conductor layer is removed, so that a first electrode including the first measurement point and a second electrode including the second measurement point are formed. In the second measurement step, the resistance between the first and the second electrodes is measured. If the conductor layer has a disconnected portion in the first measurement step, a repairing conductor is formed on the disconnected portion.Type: GrantFiled: August 12, 2005Date of Patent: October 28, 2008Assignee: Rohm Co., Ltd.Inventors: Masaya Yamamoto, Shinobu Obata
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Publication number: 20070229645Abstract: A thermal printhead (A1) includes electrodes (3a-3c) embedded in a glaze layer 2 at least at a portion laminated with a resistor (4). Favorably, the portion of the electrodes (3a-3c) laminated with the resistor (4) is sunk to a depth causing the surfaces of the electrodes to be flush with the surface of the glaze layer 2. Such structure enhances the heat transfer efficiency from a heating portion (40) of the resistor (4) to a thermal recording medium, and smooth transfer of thermal recording paper.Type: ApplicationFiled: May 23, 2005Publication date: October 4, 2007Applicant: ROHM CO., LTD.Inventors: Masaya Yamamoto, Shinobu Obata