Patents by Inventor Masahiro Kurita
Masahiro Kurita 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: 20020125099Abstract: A reverse input blocking clutch comprises, as main elements, an input member, an output member, a stationary member for constraining the revolutions, locking means, lock release means and torque transmission means. By forming the input member, the output member, the stationary member and a fixed side plate from metal plates such as press worked steel plates, a compact, lightweight and low cost reverse input blocking clutch is provided, Reverse input torque from the output member is locked in both the forward and reverse rotational directions relative to the stationary member, by rollers which function as the locking means. Input torque from the input member in both the forward and reverse rotational directions is transmitted to the output member via apertures 1d and protrusions which function as the torque transmission means.Type: ApplicationFiled: March 7, 2002Publication date: September 12, 2002Inventors: Masahiro Kurita, Atsushi Yoshioka, Masahiro Kawai
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Publication number: 20020043910Abstract: An image forming apparatus includes a table top formed above a paper discharge area. The paper discharge area is formed on a top surface of a main body of the image forming apparatus. Support members are provided on the top surface of the main body of the image forming apparatus, and the table top is supported by the support members. This structure allows the area above the paper discharge area on the top surface of the image forming apparatus not to be wasted and to be efficiently utilized.Type: ApplicationFiled: January 11, 1999Publication date: April 18, 2002Inventors: MASANORI HASHIMOTO, TAKAFUMI HOSHIMURA, MASAHIRO YONEKAWA, MASAHIRO KURITA, KAZUYUKI SAITOH
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Publication number: 20020009310Abstract: A color image forming apparatus includes a main body and a toner container setting part configured to set a plurality of toner containers individually therein. Each toner container contains a toner of a different color, and the setting part includes a receiving member configured to receive the plurality of toner containers inserted therein. The plurality of toner containers, inserted in the receiving member, are partially exposed.Type: ApplicationFiled: July 23, 2001Publication date: January 24, 2002Applicant: RICOH COMPANY, LTD.Inventors: Masaaki Kabumoto, Goro Katsuyama, Kanae Amemiya, Masahiro Kurita, Masahiro Yonekawa, Tomotoshi Nakahara, Masumi Sato, Takaaki Yanagisawa, Yoshio Hattori, Kouta Fujimori, Satoshi Muramatsu, Junichi Matsumoto
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Publication number: 20020003074Abstract: A clutch unit includes an outer ring, an inner ring a plurality of rollers, a retainer for retaining the rollers, and a centering spring mounted in the retainer. A plurality of cam surfaces are formed at equal intervals at the inner circumference of the outer ring, and a circumferential surface is formed at the outer circumference of the inner ring. An operation member is mounted at the outer circumference of the outer ring, and an input torque is provided to the outer ring from the operation member. The inner ring is coupled to an output member. A pair of engaging portions in the centering spring are engaged with a stationary side member, which couples the retainer to the stationary side member through the centering spring in the pivotal direction.Type: ApplicationFiled: May 11, 2001Publication date: January 10, 2002Inventors: Masahiro Kurita, Masahiro Kawai
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Patent number: 6318723Abstract: A game card for a sympathetic game or the like, enables a plurality of players to enjoy a psychological sympathetic game. The card includes a positional specific information entering space with a frame, a player's specific information entering space with a frame, a digital information entering space with a frame and an analog information entering space with a frame. The game card is used for playing a game in which the game cards are dealt to a plurality of players one by one. Each player enters a positional information for specifying a position of the player in the positional specific information entering space, a player's specific information for specifying the player in the player's specific information entering space, an information selected from among a plurality of predetermined written information in the digital information entering space and optional information determined by the player in the analog information entering space.Type: GrantFiled: April 23, 1999Date of Patent: November 20, 2001Assignee: Institute of SRSInventor: Masahiro Kurita
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Publication number: 20010035213Abstract: An engine valve (6) such as an intake valve or exhaust valve is driven to open or close a corresponding intake or exhaust port by attracting an armature (1) onto one of first and second electromagnets (2, 3) and a position of the armature, viz., the position of the engine valve is measured by a permanent magnet (7) and a Hall effect device (8). An adhesive layer (9) whose hardness is lower than the drive axle (5) is used to attach the permanent magnet (7) onto the drive axle (5).Type: ApplicationFiled: March 21, 2001Publication date: November 1, 2001Inventors: Hiroshi Yoneda, Masahiro Kurita, Yasuo Kouda
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Patent number: 6267443Abstract: A reclining seat having a backrest adjustable to any desired angle. The backrest is inclinably connected to the rear of the seat cushion. A fixed ring and a rotary ring are provided around an axis about which the backrest pivots. The fixed ring is mounted to the seat cushion and the rotary ring to the backrest. Cam grooves having a V-shaped section are formed in the outer circumferential surface of the fixed ring. Rolling elements are mounted between the cam grooves and a cylindrical inner surface of the rotary ring. With the backrest adjusted to a desired angle, the rolling elements are brought into frictional contact with the cam groove bottoms and the cylindrical surface to lock the backrest. An operating member having a lever is coaxially and rotatably mounted on a cage.Type: GrantFiled: August 19, 1999Date of Patent: July 31, 2001Assignee: NTN CorporationInventors: Masahiro Kurita, Masaharu Hori
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Patent number: 6206164Abstract: A novel dual-mode two-way clutch is provided which is capable of locking two relatively rotatable members from being rotated in any one of first and second directions opposite to each other, but which when an external force is applied, the clutch is in position to allow the rotatable members to rotate relative to each other in any one of the first and second directions. This dual-mode two-way clutch includes generally V-shaped cam faces 6 defined in an outer peripheral surface of an inner race 1 and a circumferentially extending raceway 2a defined in an inner peripheral surface of an outer race 2. A plurality of rolling elements 3 are interposed between the cam faces 6 and the raceway 2a in frictional engagement therewith for locking the relative rotation of the inner and outer races 1 and 2. When each of the rolling elements 3 is held in the corresponding cam face 6 at a location intermediate thereof, gaps are formed between the rolling elements 3 and the outer race 2 or cam faces 6 in a radial direction.Type: GrantFiled: March 30, 2000Date of Patent: March 27, 2001Assignee: NTN CorporationInventor: Masahiro Kurita
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Patent number: 6068097Abstract: A novel dual-mode two-way clutch is provided which is capable of locking two relatively rotatable members from being rotated in any one of first and second directions opposite to each other, but which when an external force is applied, the clutch is in position to allow the rotatable members to rotate relative to each other in any one of the first and second directions. This dual-mode two-way clutch includes generally V-shaped cam faces 6 defined in an outer peripheral surface of an inner race 1 and a circumferentially extending raceway 2a defined in an inner peripheral surface of an outer race 2. A plurality of rolling elements 3 are interposed between the cam faces 6 and the raceway 2a in frictional engagement therewith for locking the relative rotation of the inner and outer races 1 and 2. When each of the rolling elements 3 is held in the corresponding cam face 6 at a location intermediate thereof, gaps are formed between the rolling elements 3 and the outer race 2 or cam faces 6 in a radial direction.Type: GrantFiled: December 23, 1998Date of Patent: May 30, 2000Assignee: NTN CorporationInventor: Masahiro Kurita
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Patent number: 5897511Abstract: An organism vibration measuring device is for measuring a vibration of a portion of an organism which is put in an alternating magnetic field. The organism vibration measuring device includes a vibration detecting member, having a structure suitable for attachment to the portion of the organism, for detecting the vibration of the portion of the organism which resonates under an influence of the alternating magnetic field. It further includes a vibration measuring member for measuring the vibration state of the portion of the organism on the basis of a detection signal from the vibration detecting member.Type: GrantFiled: September 24, 1997Date of Patent: April 27, 1999Assignee: Institute of SRSInventor: Masahiro Kurita
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Patent number: 5831263Abstract: An in-cylinder pressure sensing apparatus for a multi-cylinder engine has a plurality of sensing parts packaged between a cylinder head and a cylinder block of an engine having a plurality of cylinders and being operative to detect a signal indicative of an internal pressure of each of the plurality of cylinders. A detection circuit is provided for connecting the sensing parts in series and for overlapping detection signals obtained from the individual sensing parts to take out a resulting overlapped signal. A reference signal generator operates to supply a reference signal for separating detection signals corresponding to the individual cylinders from the overlapped signal. A unit is also provided for separating the detection signals, detected in accordance with pressures of the individual cylinders, from the overlapped signal on the basis of the reference signal.Type: GrantFiled: October 26, 1995Date of Patent: November 3, 1998Assignee: Hitachi, Ltd.Inventors: Masahiro Komachiya, Shigeru Oho, Satoshi Shimada, Seiko Suzuki, Masahiro Kurita, Terumi Nakazawa, Takao Sasayama
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Patent number: 5695031Abstract: A one-way clutch operates stably even while an engine is revolving at a speed that tends to resonate the springs of the clutch. The clutch has an outer ring formed with a plurality of cam surfaces on its inner periphery at equal intervals in the circumferential direction. An inner ring mounted in the outer ring has a cylindrical outer surface that faces the cam surfaces. Wedge-like spaces are defined between the cam surfaces an the cylindrical outer surface. Rollers and springs are mounted in the wedge-like spaces so that the rollers are biased by the springs toward narrower ends of the wedge-like spaces. The springs are made up of at least two different kinds of springs having different spring constants. Thus, even if one of at least two kinds of springs should resonate, the other springs will reliably keep the rollers locked between the cam surfaces and the cylindrical surface or move them to unlocked position. The life of the clutch is thus increased.Type: GrantFiled: June 26, 1996Date of Patent: December 9, 1997Assignees: NTN Corporation, Bamdo Chemical Industries, Ltd.Inventors: Masahiro Kurita, Hirofumi Miyata
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Patent number: 5693936Abstract: A physical quantity detecting apparatus comprises at least one optical fiber, at least one light emitting means for emitting an incident light beam on the optical fiber, at least one light receiving means for detecting an outgoing light beam from the optical fiber, physical quantity applied position information generating means for providing information indicative of a position of a portion at which a physical quantity is applied to the optical fiber, and operation means for receiving signals from the light receiving means and physical quantities applied position information generating means and calculating a change with time in physical quantity at respective positions on the optical fiber.Type: GrantFiled: April 26, 1994Date of Patent: December 2, 1997Assignee: Hitachi, Ltd.Inventors: Masahiro Komachiya, Shigeru Oho, Satoshi Shimada, Seiko Suzuki, Takao Sasayama, Minoru Takahashi, Masahiro Kurita
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Patent number: 5672110Abstract: A torque limiter adapted to be automatically reset after a long period of time. The inner ring (1) has a cylindrical surface (5). A polygonal engaging surface (9) is formed on the outer ring (2) by a leaf spring in the shape of a polygonal ring. A cage (11) having pockets is provided between the inner and outer rings (1, 2). Rollers (13) received in the pockets are adapted to engage the cylindrical surface (5) and the engaging surface (9) at the narrowest portions. The inner ring (1) has an eccentric surface (15) on which is supported a bearing (16) which holds the cage (11) in a diametrically offset position. An annular portion (20) of the cage (11) is brought into contact with an annular portion (19) of the outer ring (2). As the torque increases with the rollers (13) engaged, the leaf spring (8) is deformed and the rollers (13) pass through the engaging positions, so that the clutch is disengaged.Type: GrantFiled: May 28, 1993Date of Patent: September 30, 1997Assignee: NTN CorporationInventors: Masahiro Kurita, Syoji Itomi, Yuji Okamoto
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Patent number: 5664653Abstract: A rotary unit with a built-in clutch which is short in its axial length. The rotary unit has an inner member having an outer periphery formed with a raceway groove and a pair of cylindrical surfaces on both sides of the raceway groove, and a cylindrical outer member having an inner periphery formed with a raceway groove and a pair of cylindrical surfaces on both sides of the groove. A retainer mounted between the inner and outer members has a plurality of circumferentially spaced pockets each housing a rolling member and sprag housing recesses provided alternately with the pockets. In each recess is received a sprag having both ends thereof resting on the opposing cylindrical surfaces and biased by a resilient member so that its inner and outer arcuate surfaces contact the cylindrical surfaces. By arranging the sprags and the rolling members alternately with each other in the circumferential direction, it is possible to reduce the entire axial length of the rotary unit.Type: GrantFiled: December 13, 1995Date of Patent: September 9, 1997Assignee: NTN CorporationInventors: Masahiro Kurita, Kenichi Ichikawa, Masakazu Doumoto
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Patent number: 5649188Abstract: A system for electronically storing and retrieving information. Information is scanned into the system and a user manually designates that the information is to be sorted using boxes which are like folders, sorted by date, or sorted by a card such as by cards which are arranged alphabetically. When the user manually indicates that the information is to be sorted by box, there is also an automatic sort by date and by card. In this case the card which is used is a temporary sort card which is automatically designated. When the user manually indicates that the sort is other than by box, the information is automatically sorted into a temporary box. After the information is stored and sorted, the information can be retrieved and printed, as desired. The system utilizes a scanner, processor, storage device and printer.Type: GrantFiled: August 19, 1993Date of Patent: July 15, 1997Assignee: Ricoh Company, Ltd.Inventors: Keiichi Nomura, Hirofumi Endo, Yasuhiro Ii, Yuko Ogasawara, Mitsuhiro Kawai, Yasuyoshi Onoue, Masahiro Kurita, Akira Imai, Mitsuaki Takeuchi
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Patent number: 5602829Abstract: When a data transmission request is generated, a transmission capable counter indicative of a data length C1 of data which can be transmitted at a certain time point is checked and, when a count value is positive, transmission data Cs is subtracted from the value of the transmission capable counter and a transmitting process is started by a line transmission processing section. When the value C1 of the transmission capable counter is negative or 0, the transmission data is held in a transmission holding data queue. When a fundamental timer times out, if the value C1 of the transmission capable counter is positive, a value C2 of a transmission throughput counter is preset. If the value C1 of the transmission capable counter is negative or 0, the value C2 of the transmission throughput counter is added to the value C1 of the transmission capable counter.Type: GrantFiled: March 21, 1996Date of Patent: February 11, 1997Assignee: Fujitsu LimitedInventors: Hirokazu Nie, Tetsuo Chimoto, Shinji Shihara, Masahiro Kurita
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Patent number: 5367429Abstract: An electrostatic type micro accelerometer comprising means for preventing permanent sticking between a movable electrode and a stationary electrode due to residual dielectric polarization, resisual electric charges and water adsorption and condensation around possible contacting portions therebetween when the movable electrode excessively displaces. The sticking preventing means is realized by disposing one of electric field reducing means, water adsorption and condensation reducing means and contacting area limiting means around the possible contacting portions.Type: GrantFiled: October 16, 1992Date of Patent: November 22, 1994Assignees: Hitachi, Ltd, Hitachi Automotive Engineering Co., Ltd.Inventors: Shigeki Tsuchitani, Seiko Suzuki, Satoshi Shimada, Masayuki Miki, Masahiro Matsumoto, Susumu Murakami, Akira Koide, Masahiro Kurita, Hiromichi Ebine
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Patent number: D443891Type: GrantFiled: July 5, 2000Date of Patent: June 19, 2001Assignee: Ricoh Company, Ltd.Inventors: Masahiro Yonekawa, Masaaki Kabumoto, Yoko Nakamura, Masahiro Kurita, Kanae Nomura
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Patent number: D450753Type: GrantFiled: August 15, 2000Date of Patent: November 20, 2001Assignee: Ricoh Company, Ltd.Inventors: Kanae Nomura, Masaaki Kabumoto, Masahiro Kurita