Patents by Inventor Nobuyuki Nakajima
Nobuyuki Nakajima 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: 6276860Abstract: A liquid applicator has a vaned collector. The collector's rear end is abutted on a partition having a concave portion, creating a gap B therebetween. A cylindrical projection is formed inside the rear sleeve concentrically on its axis so that a replaceable cartridge holding ink is removably attached with its front end fitted to the cylindrical projection. A trunk core's rear end is inserted into a communication passage that is formed in the cylindrical projection with a gap A formed between the trunk core surface and the wall surface of the communication passage. This gap A is put in communication with an ink slit of the collector via gap B. Grooves are formed in the convex portion while a number of ribs are formed apart with respect to a barrel's circumference on inner peripheral surface of the communication passage of the cylindrical projection. These ribs stably support the rear end of the trunk core.Type: GrantFiled: June 27, 2000Date of Patent: August 21, 2001Assignee: Mitsubishi Pencil Kabushiki KaishaInventors: Nobuyuki Nakajima, Kenzi Sato, Shigeki Ohba
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Patent number: 6266152Abstract: An image processor which easily sets color matching processing for each object in an image in accordance with a user's utilization of the image, as well as performing color matching processing suitable for each object and obtaining a high quality output image. In the processor, the type of the output image is manually set from an operation unit, a driver inputs an object image included in the output image, determines the type of the input object image, and performs color matching processing on the object image on the basis of the pre-stored profile information corresponding to the determined type of the object image and the set type of the output image. A controller of a printer assigns priority to gray color reproduction, and always applies gray compensation to a text image, but not to a natural image, and controls whether or not to apply gray compensation to a graphic image in accordance with a manual instruction.Type: GrantFiled: March 28, 1997Date of Patent: July 24, 2001Assignee: Canon Kabushiki KaishaInventor: Nobuyuki Nakajima
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Patent number: 6255409Abstract: An epoxy resin composition comprising (A) a bifunctional crystalline epoxy compound, (B) an amorphous trisphenolmethane type epoxy compound having three or more of epoxy groups in a molecule, and (C) an epoxy curing agent having phenolic hydroxyl groups. The resin composition has an excellent moldability (low viscosity and can be filled with filler with high density) and high softening point, and is used preferably as an encapsulating material for electronic device.Type: GrantFiled: March 12, 1999Date of Patent: July 3, 2001Assignee: Sumitomo Chemical Co., Ltd.Inventors: Yoshiki Matsuoka, Yasuhiro Hirano, Nobuyuki Nakajima
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Patent number: 6244769Abstract: A cartridge includes a cartridge body and a holder for holding a stick cosmetic and movable forward/backward in accordance with a screw movement. A container body includes an outer cylinder for rotatably holding the cartridge body, a clicking rod movable forward/backward, a rotor rotated by a cam mechanism while moving forward together with the clicking rod when a clicking operation is performed, and a rotation rod for transmitting the rotational force of the rotor to the holder. The holder and the rotor engage with the rotation rod in the rotating direction and are slidable forward/backward. When a clicking operation is performed, the holder rotates to move forward in accordance with the screw movement. When a clicking operation is not performed, the cartridge body is rotated to move the holder forward/backward.Type: GrantFiled: May 29, 1996Date of Patent: June 12, 2001Assignee: Mitsubishi Pencil Kabushiki KaishaInventors: Nobuyuki Nakajima, Mitsuru Endou
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Patent number: 6155735Abstract: A liquid pressing mechanism (11) includes: a fixed cylinder (11) having saw-toothed cam grooves (11e) and a female thread (11d) at the front end thereof; a feed element (12) fitted to this fixed cylinder (11) so as to be rotatable, having a cam portion (12f) formed of a cantilever spring which engages the cam grooves (11e) and limiting the rotational direction to only one direction; a screw rod (13) fitted through a fitting hole (12h) of this feed element (12) so as to move in the longitudinal direction and so as not to be rotatable and having a male thread (13a) on the peripheral surface thereof which is screw fitted with the female thread (11d) of the fixed cylinder (11); and a piston (14) fixed to the front end of the screw rod (13) projected forward from the female thread of the fixed cylinder (11) and slidably inserted whilst maintaining its fluid-tight state with respect to the inner surface of the fixed cylinder (11).Type: GrantFiled: November 9, 1999Date of Patent: December 5, 2000Assignee: Mitsubishi Pencil Kabushiki KaishaInventor: Nobuyuki Nakajima
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Patent number: 6104829Abstract: An image processing apparatus and an image processing method realize an optimum color reproduction and as a result provide an ideal output by selectively using color processing methods including color gamut compression in accordance with the output method in the apparatus.Type: GrantFiled: October 20, 1997Date of Patent: August 15, 2000Assignee: Canon Kabushiki KaishaInventor: Nobuyuki Nakajima
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Patent number: 6070960Abstract: According to the invention, whether a print head of, for example, the thermal jet system has been capped or not is informed to the user, thereby preventing that the user turns off the power source when the head is not capped. Even when the user turns off the power source in spite of the fact that the head is not capped yet, the capping status is checked before the power source is turned off. After the head was capped, the power source is turned off. Due to this, it is prevented that the print head is left while the head is not capped yet. The choking of the nozzles can be prevented.Type: GrantFiled: June 16, 1997Date of Patent: June 6, 2000Assignee: Canon Kabushiki KaishaInventor: Nobuyuki Nakajima
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Patent number: 6025929Abstract: Inputted image data is subjected to image processing by the matching unit 513, luminance-density conversion unit 514, input correction unit 515, masking unit 516, head shading (HS) processing unit 517, tone reproduction curve (TRC) processing unit 518 and binarize processing unit 519. The selecting unit 133 controls at least the on/off of the process operation of the HS processing unit 517 and a binarization method of the binarize processing unit 519, in accordance with an image process condition set by the setting unit 14. On account of the above, when an image is printed, it is possible to easily set image quality and processing speed that is suitable for the usage of an output image.Type: GrantFiled: June 16, 1997Date of Patent: February 15, 2000Assignee: Canon Kabushiki KaishaInventors: Nobuyuki Nakajima, Satoru Yamada
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Patent number: 5949427Abstract: A multicolor printer which can print an image with improved image quality by selecting a desired color reproduction process depending on data to be handled. An output apparatus comprises an input unit 111 for receiving visual data containing data in a command format for output control; image data etc. delivered from an external apparatus; an analyzer 112 for analyzing the input data; a developing unit 113 for developing the input data into output data based on an analyzed result; a color processor 114 for executing color processing such as color space compression on the input data during the development by the developing unit; a color processing method storage 116 for storing a plurality of color processing methods executed by the color processor 114; and a selector 115 for selecting one of the plural color processing methods in the storage 116.Type: GrantFiled: June 12, 1996Date of Patent: September 7, 1999Assignee: Canon Kabushiki KaishaInventors: Naoyuki Nishikawa, Nobuyuki Nakajima
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Patent number: 5921273Abstract: A a cartridge type delivery valve assembly in which a valve seat surface and a valve are integrated in order to assure good seating characteristics in the delivery valve. The delivery valve assembly is formed by fixing together a valve holder provided with delivery holes, a roll valve that is mounted along the internal surface of the valve holder to freely open and close the delivery holes and a valve stopper that fixes the roll valve onto the valve holder and regulates the lift quantity of the roll valve, in an integrated manner using coupling members and the delivery valve assembly thus achieved is mounted in a valve insertion space.Type: GrantFiled: April 7, 1997Date of Patent: July 13, 1999Assignee: Zexel CorporationInventors: Mitsuya Ono, Katsumi Sakamoto, Nobuyuki Nakajima, Toshihiro Murayama, Shunji Muta, Tomoyasu Takahashi, Susumu Makihira
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Patent number: 5851080Abstract: A liquid applicator is provided which is capable of using a cartridge-type tank. The liquid applicator has a lock mechanism which is capable of preventing an inadvertent pressing of the knocking rod with a simple construction. A cartridge-type tank containing a liquid therein is accommodated within the cylindrical applicator body while a soaker for applying the liquid sealed in the tank is attached to the forward tip end of the applicator body. The cylindrical tail plug is detachably fitted into the rearward end of the applicator body with the tail plug being formed with an engaging lug radially outwardly therein. The knocking rod is coaxially provided inside the cylindrical tail plug with the lug inwardly projecting from an inside surface of the tail plug being engaged with the L-shaped groove formed in the periphery of the knocking rod.Type: GrantFiled: September 16, 1996Date of Patent: December 22, 1998Assignee: Mitsubishi Pencil Co., Ltd.Inventors: Nobuyuki Nakajima, Toru Nagai
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Patent number: 5827002Abstract: A liquid applicator includes: an applicator portion provided at the front end of a barrel; a barrel joint having an approximately cylindrical shape, fitted into the rear of the barrel; and a pushing mechanism having a piston for pushing the liquid, accommodated inside the barrel joint. In this pushing mechanism, as a rotary handle is turned, a threaded shaft together with a delivering member rotates so as to move itself forwards by means of screw engagement with a threaded piece fixed to the barrel joint and thereby move the piston in the same direction. A liquid contained in front of the piston is delivered toward the applicator portion, thus the applicator portion is impregnated with the liquid.Type: GrantFiled: August 28, 1997Date of Patent: October 27, 1998Assignee: Mitsubishi Pencil Kabushiki KaishaInventor: Nobuyuki Nakajima
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Patent number: 5803640Abstract: An applicator includes: a barrel cylinder; an application portion in front of the barrel cylinder; a tank placed behind the application portion for storing liquid inside the barrel cylinder; a pipe (conduit) for conducting the liquid ejected from the tank to the application portion; a piston which is fitted in the tank as to slide in the axial direction ensuring a watertight contact; and a liquid pushing device placed in the rear part of the barrel cylinder for pushing the liquid from the tank to the application portion via the pipe by moving the piston forwards. In this applicator, the bore of the pipe is set between 0.2 mm and 1.7 mm, and the viscosity of the liquid measured by the E-type viscometer within an temperature range for operation is set between 20 mpa.sec and 100,000 mpa.sec. Further, the barrel cylinder is formed of PP, and the piston is formed of HDPE or LLDPE.Type: GrantFiled: February 3, 1997Date of Patent: September 8, 1998Assignee: Mitsubishi Pencil Kabushiki KaishaInventors: Nobuyuki Nakajima, Mitsuru Endou, Takashi Umeno
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Patent number: 5718723Abstract: This invention provides a more functionalized artificial blood vessel which can be organized by independently designing its inner and outer surfaces and endowing them with respectively different biocompatibilities, as well as a process for producing the same.The artificial blood vessel comprises a tubular support having a layer of photogelled cinnamic acid-bound chondroitin sulfate coated on the inner surface thereof and a layer of photogelled coumarin-bound gelatin coated on the outer surface thereof. The process for producing the above artificial blood vessel comprises coating a layer of coumarin-bound gelatin on the outer surface of a tubular support and a layer of cinnamic acid-bound chondroitin sulfate on the inner surface of the support and irradiating each of the layers with light.Type: GrantFiled: September 13, 1994Date of Patent: February 17, 1998Assignee: Seikagaku Kogyo Kabushiki Kaisha (Seikagaku Corporation)Inventors: Takehisa Matsuda, Nobuyuki Nakajima, Hiroyuki Kito
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Patent number: 5678941Abstract: A fluid applicator which makes application work easy because liquid splash outside the container body is prevented by opening the valve by removing the cap such that the liquid is supplied directly to the applicator member from the container body. The valve body incorporated in a sealed chamber is pressed against the shouldered seal portion to bring the sealed chamber into communication with the connecting passage such that the liquid discharged from the container body is allowed to flow into the sealed chamber through a hollow shaft member and is further led through a connecting passage into the applicator attachment hole to which the applicator member is attached.Type: GrantFiled: July 27, 1995Date of Patent: October 21, 1997Assignee: Mitsubishi Pencil Co., Ltd.Inventor: Nobuyuki Nakajima
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Patent number: 5615315Abstract: An output apparatus comprises: a cache memory to temporarily store the bit map pattern data which was developed to the bit map pattern on the basis of character information; an accumulating device to accumulate a plurality of bit map pattern data extracted from the cache memory; a rewriting unit to rewrite the bit map pattern data stored in the cache memory; a print controller to print on the basis of the data accumulated in the accumulating device; a detector to detect an operating state in the print controller; and a control unit to control the data rewriting process in the cache memory and the data clearing process in the accumulating device in accordance with the operating state detected by the detector. Since the rewriting and clearing processes to the cache memory are executed synchronously with the printing operation, even if a paper jam occurred, there is no need to develop to the cache memory.Type: GrantFiled: October 3, 1994Date of Patent: March 25, 1997Assignee: Canon Kabushiki KaishaInventor: Nobuyuki Nakajima
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Patent number: 5593297Abstract: In a scroll type compressor, a simple structure provides oil intake assistance to ensure that lubricating oil in an oil space is induced into a spiral groove in correspondence to the rotation rate of a drive shaft. The drive shaft is provided with an inclined spiral groove which is formed in the external circumferential surface of the drive shaft. The drive shaft slides in contact with a main bearing. A leading end of the spiral groove, in the direction of the rotation of the drive shaft, communicates with the oil space and a trailing end of the spiral groove opens into the lubricating oil reservoir. The lubricating oil is supplied to the area where the drive shaft slides in contact with the main bearing by the spiral groove. Also, upon rotation of the drive shaft, intake of lubricating oil into the spiral groove is assisted when the suction force is reduced due to a high rotation rate.Type: GrantFiled: June 16, 1995Date of Patent: January 14, 1997Assignees: Zexel Corporation, Tama Manufacturing Co., Ltd.Inventors: Nobuyuki Nakajima, Masakuni Ishikawa, Norikatsu Kiso, Nobukazu Takagi, Yukio Kazahaya, Seiji Kuchiki
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Patent number: 5551852Abstract: A scroll type compressor including a drive shaft which is provided with a spiral groove formed in an external circumferential surface of the drive shaft. The spiral groove communicates diagonally between the oil space and the upper portion of the main bearing to ensure sufficient lubrication and sealing in the area where the drive shaft slide in contact with the main bearing. A seal bearing portion is positioned between the oil space and the low pressure space to isolate the oil space from the low pressure orbiting space, achieving an improvement in lubrication. The seal bearing portion is constituted with a seal washer, a seal bearing and a seal member, and, furthermore, with seal reinforcing material, to especially improve the seal between the oil space and the oscillation space.Type: GrantFiled: July 21, 1995Date of Patent: September 3, 1996Assignee: Zexel CorporationInventors: Susumu Saito, Nobukazu Takagi, Kiyohiro Harada, Yukio Kazahaya, Seiji Kuchiki, Masakuni Ishikawa, Nobuyuki Nakajima
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Patent number: 5503539Abstract: A scroll compressor reduces the load applied to the thrust bearing, to prevent a thrust bearing from seizing and to improve the service life of the thrust bearing. It comprises an electric motor that is provided within a high pressure space inside a sealed case with a stator fixed within the sealed case and a rotor fixed to a drive shaft. An oscillating shaft is decentered on and extends from the drive shaft. An oscillating scroll member has an insertion hole into which the oscillating shaft is inserted. A fixed scroll member forms a compression space by fitting into the oscillating scroll member, and a block secures the fixed scroll member inside the sealed case and clamps the oscillating scroll member so that it can oscillate freely between the block and the fixed scroll member. The thrust bearing is provided between the drive shaft and the block to hold the lower end of the drive shaft so that it can rotate freely.Type: GrantFiled: June 16, 1994Date of Patent: April 2, 1996Assignee: Zexel CorporationInventors: Nobuyuki Nakajima, Masakuni Ishikawa, Susumu Saito
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Patent number: 5485278Abstract: An image processing method and apparatus are used for generating image data including characters or symbols in a color on the basis of a designated size. The brightness at which the image data is generated is changed in accordance with the designated size of a character or symbol. Thus, when printing a character or symbol on a printer, the difference in visual impression which is felt when the character or symbol has been printed in a different size, is reduced.Type: GrantFiled: November 22, 1994Date of Patent: January 16, 1996Assignee: Canon Kabushiki KaishaInventor: Nobuyuki Nakajima