Patents by Inventor Hirofumi Higashi
Hirofumi Higashi 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: 20040000871Abstract: When viewed from the surface of a front substrate, a light absorption layer is formed at least in part on the back surface of the front substrate in alignment with a part between two back-to-back bus electrodes and of the respective row electrode pairs adjacent to each other in the row direction and with a part ranging from the part to the vicinity of a side edge of each of the bus electrodes and connected to the corresponding transparent electrodes. A light reflection layer is formed on the back surface of the light absorption layer.Type: ApplicationFiled: June 12, 2003Publication date: January 1, 2004Applicants: PIONEER CORPORATION, PIONEER DISPLAY PRODUCTSInventors: Hirofumi Higashi, Shingo Ogane
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Publication number: 20030175614Abstract: Provision of a manufacturing method for forming lamination of a plurality of dielectric layers on a substrate of a plasma display panel. A forming process for forming a photosensitive glass material layer and a patterning process for exposing required regions of the resulting photosensitive glass material layer to light are repeated in each formation of a first photosensitive glass material layer L1 and a second photosensitive glass material layer L2. After completion of the individual forming process and the individual patterning process for each of the first and second photosensitive glass material layers L1 and L2, a developing process for removing the unexposed regions and a burning process following the developing process are each performed on both of the first and second photosensitive glass material layers L1 and L2 together.Type: ApplicationFiled: March 11, 2003Publication date: September 18, 2003Applicant: Pioneer Corporation & Shizuoka Pioneer CorporationInventors: Hirofumi Higashi, Shingo Ogane
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Patent number: 6382178Abstract: In a SOHC type internal combustion engine having a single camshaft, a fuel injector is provided for directly injecting a fuel into a combustion chamber, and an intake port is provided such that one end of the intake port is open at intake openings to the combustion chamber. The intake port extends toward the top face of a cylinder head between the camshaft and two intake valves, such that at least a part of the intake port passes through a region between the shortest lines connecting respective head portions of the intake valves and the camshaft.Type: GrantFiled: January 19, 2001Date of Patent: May 7, 2002Assignee: Mitsubishi Jidosha Kogyo Kabushiki KaishaInventors: Hirofumi Higashi, Yasuhiko Iwamoto, Tateo Kume, Tetsuo Kataoka, Shinichi Murata, Kazuhiro Ichimoto, Kojiro Okada, Akihito Miyamoto
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Publication number: 20010018905Abstract: In a SOHC type internal combustion engine having a single camshaft, a fuel injector is provided for directly injecting a fuel into a combustion chamber, and an intake port is provided such that one end of the intake port is open at intake openings to the combustion chamber. The intake port extends toward the top face of a cylinder head between the camshaft and two intake valves, such that at least a part of the intake port passes through a region between the shortest lines connecting respective head portions of the intake valves and the camshaft.Type: ApplicationFiled: January 19, 2001Publication date: September 6, 2001Applicant: MITSUBISHI JIDOSHA KOGYO KABUSHIKI KAISHAInventors: Hirofumi Higashi, Yasuhiko Iwamoto, Tateo Kume, Tetsuo Kataoka, Shinichi Murata, Kazuhiro Ichimoto, Kojiro Okada, Akihito Miyamoto
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Patent number: 6196180Abstract: In a SOHC type internal combustion engine having a single camshaft, a fuel injector is provided for directly injecting a fuel into a combustion chamber, and an intake port is provided such that one end of the intake port is open at intake openings to the combustion chamber. The intake port extends toward the top face of a cylinder head between the camshaft and two intake valves, such that at least a part of the intake port passes through a region between the shortest lines connecting respective head portions of the intake valves and the camshaft.Type: GrantFiled: July 24, 1998Date of Patent: March 6, 2001Assignee: Mitsubishi Jidosha Kogyo Kabushiki KaishaInventors: Hirofumi Higashi, Yasuhiko Iwamoto, Tateo Kume, Tetsuo Kataoka, Shinichi Murata, Kazuhiro Ichimoto, Kojiro Okada, Akihito Miyamoto
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Patent number: 5704316Abstract: A valve drive system of an internal combustion engine provided with a camshaft (20) adapted to be rotated by means of a crankshaft, a cam robe (38) rotatably mounted on the camshaft (20), a cam (24) formed integrally with the cam robe (38) and serving to open and close an intake valve (24) in cooperation with a valve spring (92), a viscous coupling (40) arranged between the camshaft (20) and the cam robe (38) and serving to transmit a rotatory force of the camshaft (20) to the cam robe (38), and a spiral spring (42) for connecting the camshaft (20) and the cam robe (38) and urging the cam robe (38) toward a predetermined rotational angle position with respect to the camshaft (20) .Type: GrantFiled: May 12, 1995Date of Patent: January 6, 1998Assignee: Mitsubishi Jidosha Kogyo Kabushiki KaishaInventors: Akihiro Fujimoto, Shinichi Murata, Jun Isomoto, Noriyuki Miyamura, Hirofumi Higashi
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Patent number: 5441020Abstract: In a valve-moving apparatus for an internal combustion engine, lever members are integrally formed with rocker shaft parts and arm parts, the lever members are provided with large-diameter parts larger in diameter than support parts, disposed between support parts of the rocker shaft parts supported by support members of the engine and the arm parts; rocker arms driven by cams are rotatably supported on the large-diameter parts; and change-over mechanisms for selectively engaging the large-diameter parts and the rocker arms are disposed in the large-diameter parts, thereby improving rigidity of the large-diameter parts and achieving improved reliability of the change-over mechanisms.Type: GrantFiled: February 26, 1993Date of Patent: August 15, 1995Assignee: Mitsubishi Jidosha Kogyou Kabushiki KaishaInventors: Shinichi Murata, Setsuo Nishihara, Tetsuo Kataoka, Hideki Miyamoto, Noriyuki Miyamura, Masahiko Kubo, Hirofumi Higashi
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Patent number: 5429079Abstract: An internal combustion engine of the present invention comprises at least first and second cylinder banks each including a plurality of cylinders or a single cylinder, a first valve operating mechanism provided for each of the cylinders of the first cylinder bank for operating an intake valve or an exhaust valve of the cylinder to open and close, and a second valve operating mechanism having a valve operating characteristic different from that of the first valve operating mechanism and provided for each of the cylinders of the second cylinder bank for operating an intake valve or an exhaust valve of the cylinder to open and close.Type: GrantFiled: July 14, 1993Date of Patent: July 4, 1995Assignee: Mitsubishi Jidosha Kogyo Kabushiki KaishaInventors: Shinichi Murata, Noriyuki Miyamura, Hirofumi Higashi, Setsuo Nishihara, Michiyasu Yoshida, Tetsuo Kataoka, Nobuaki Murakami, Hiroshi Kamada, Hideki Miyamoto
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Patent number: 5427064Abstract: In a valve-moving apparatus for an internal combustion engine, lever members are integrally formed with rocker shaft parts and arm parts, the lever members are provided with large-diameter parts larger in diameter than support parts, disposed between support parts of the rocker shaft parts supported by support members of the engine and the arm parts; rocker arms driven by cams are rotatably supported on the large-diameter parts; and change-over mechanisms for selectively engaging the large-diameter parts and the rocker arms are disposed in the large-diameter parts, thereby improving rigidity of the large-diameter parts and achieving improved reliability of the change-over mechanisms.Type: GrantFiled: June 28, 1994Date of Patent: June 27, 1995Assignee: Mitsubishi Jidosha Kogyo Kabushiki KaishaInventors: Shinichi Murata, Setsuo Nishihara, Tetsuo Kataoka, Hideki Miyamoto, Noriyuki Miyamura, Masahiko Kubo, Hirofumi Higashi
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Patent number: 5423295Abstract: In a valve-moving apparatus for a V-type multi-cylinder internal combustion engine in which plural rows of cylinders are disposed at predetermined angle relative to a crank shaft, cam shafts having cams disposed offset according to the plural rows of individual cylinders are provided, and fluid supply means provided on the cylinder head for supplying hydraulic pressure to a cooling passage, a lubricating passage, or change-over means of the valve-moving mechanism of variable valve operation condition is disposed in a space formed between the cylinder rows or in a space formed by cam shafts disposed offset along the crank shaft axial direction.Type: GrantFiled: June 7, 1994Date of Patent: June 13, 1995Assignee: Mitsubishi Jidosha Kogyo Kabushiki KaishaInventors: Shinichi Murata, Hirofumi Higashi
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Patent number: 5370090Abstract: In a valve-moving apparatus for a V-type multi-cylinder internal combustion engine in which plural rows of cylinders are disposed at predetermined angle relative to a crank shaft, cam shafts having cams disposed offset according to the plural rows of individual cylinders are provided, and fluid supply means provided on the cylinder head for supplying hydraulic pressure to a cooling passage, a lubricating passage, or change-over means of the valve-moving mechanism of variable valve operation condition is disposed in a space formed between the cylinder rows or in a space formed by cam shafts disposed offset along the crank shaft axial direction.Type: GrantFiled: March 10, 1993Date of Patent: December 6, 1994Assignee: Mitsubishi Jidosha Kogyo Kabushiki KaishaInventors: Shinichi Murata, Hirofumi Higashi
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Patent number: 5353756Abstract: The valve operating system structure with a variable valve timing mechanism of the invention comprises an intake valve or an exhaust valve provided for an engine, a low speed cam having a cam profile for a low speed valve timing and rotatable in response to rotation of a crankshaft of the engine, a high speed cam having a cam profile for a high speed valve timing and rotatable in response to rotation of the crankshaft, a main rocker arm for contacting with the low speed cam so as to be operated by the low speed cam, a sub rocker arm for contacting with the high speed cam so as to be operated by the high speed cam, mode change-over means for changing over the mode of the sub rocker arm between a non-interlocking mode in which the sub rocker arm is not interlocked with the main rocker arm and an interlocking mode in which the sub rocker arm is interlocked with the main rocker arm, a swing arm supported for pivotal motion and for adjustment in phase relative to the main rocker arm and having a valve contacting pType: GrantFiled: July 14, 1993Date of Patent: October 11, 1994Assignee: Mitsubishi Jidosha Kogyo Kabushiki KaishaInventors: Shinichi Murata, Noriyuki Miyamura, Hirofumi Higashi, Masahiko Kubo
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Patent number: 5024189Abstract: An engine unit includes a cylinder block of a short-skirt type which has a plurality of first partition walls and a plurality of crank journals formed on the partition walls and rotatably receiving the crankshaft. Bearing caps are fitted to the crank journals and rotatably hold the crankshaft in cooperation with the crank journals. A lower case is fixed to the cylinder block and covers the crankshaft. The lower case includes a pair of flanges abutting against the lower edges of the skirt portions, a semi-cylindrical bottom wall, and a plurality of second partition walls formed on the bottom wall to oppose the first partition walls. Each bearing cap is clamped between the first and second partition walls. The lower case is fixed to the cylinder block by means of first bolts screwed into the skirt portions through the flanges, and second bolts screwed into the crank journals through the second partition walls and bearing caps.Type: GrantFiled: January 29, 1990Date of Patent: June 18, 1991Assignee: Mitsubishi Jidosha Kogyo Kabushiki KaishaInventors: Sadakatsu Ushio, Noboru Nakamura, Hirofumi Higashi, Masataka Iwata, Fumiyasu Niwa