Patents by Inventor Chikara Murata
Chikara Murata 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).
-
Publication number: 20080241508Abstract: An optical layered product has a translucent substrate having at least an optically functional layer, containing translucent microparticles, provided directly or via another layer onto one or both sides of the substrate. The standard deviation of area dispersion variability of the translucent microparticles in the optically functional layer is in the range of 0.04 to 0.20.Type: ApplicationFiled: March 31, 2008Publication date: October 2, 2008Applicant: TOMOEGAWA CO., LTD.Inventors: Masaomi Kuwabara, Chikara Murata, Kazuya Ohishi, Hideki Moriuchi
-
Patent number: 6852189Abstract: In a method for manufacturing laminates comprising a plurality of continuously formed component members having different cross-sectional shapes, a long-sized workpiece is indexed in the longitudinal direction, the component members having outside contours corresponding to each of the cross-sectional shapes of the laminate are formed with non-separating indentation, with at least part of the outside contours left unseparated from the workpiece, and the component members are sequentially punched out and laminated into one piece in the final stage of indexing of the workpiece.Type: GrantFiled: December 25, 2001Date of Patent: February 8, 2005Assignee: Institute of Technology Precision Electrical Discharge Work'sInventors: Shoji Futamura, Chikara Murata
-
Patent number: 6777070Abstract: An anti-reflection material and a polarization film which exhibit superior anti-reflection properties by preventing external light such as sunlight, fluorescent light, etc., from being reflected on a display, which yield a clear image without sparkling and reduces image contrast, and which exhibit superior wear resistance, chemical resistance, and contamination resistance, as well as exhibit optical stability. A hard coat layer is provided on one surface or two surfaces of a transparent substrate directly or via another layer, and an anti-reflection film having a lower refraction index than the hard coat layer is further provide on the hard coat layer.Type: GrantFiled: June 21, 2000Date of Patent: August 17, 2004Assignee: Tomoegawa Paper Co., Ltd.Inventors: Chikara Murata, Kazuya Ohishi, Yasuhiro Matsunaga, Tomohisa Yamamoto
-
Patent number: 6682625Abstract: A method for manufacturing profiles formed so as to have different cross-sectional shapes in the height direction, in which a long-sized hoop of workpiece is indexed, a plurality of types of component members having outer contours corresponding to the respective cross-sectional shapes of the profile are formed in a plurality of stages and indexed in the state where the component members are replaced on the workpiece, and the component members are sequentially ejected from the workpiece, laminated into a profile in the final stage.Type: GrantFiled: March 5, 1999Date of Patent: January 27, 2004Assignees: Institute of Technology Precision Electrical Discharge Works, Japan Science and Technology CorporationInventors: Shoji Futamura, Chikara Murata, Isamu Aoki
-
Publication number: 20040011456Abstract: In a method for manufacturing laminates comprising a plurality of continuously formed component members having different cross-sectional shapes, a long-sized workpiece is indexed in the longitudinal direction, the component members having outside contours corresponding to each of the cross-sectional shapes of the laminate are formed with non-separating indentation, with at least part of the outside contours left unseparated from the workpiece, and the component members are sequentially punched out and laminated into one piece in the final stage of indexing of the workpiece.Type: ApplicationFiled: April 14, 2003Publication date: January 22, 2004Inventors: Shoji Futamura, Chikara Murata
-
Patent number: 6647885Abstract: There is provided a marking apparatus, a marking method, and a marking system that enable the position of a marking target to be accurately shown, and that reliably enable only that portion containing the marking target to be removed. The marking system has a detector that detects a marking target on a subject material and acquires the position thereof, a marking apparatus having heads capable of marking an optional position in the transverse direction of the subject material, and a control apparatus that sends a marking instruction to the marking apparatus when the position of the marking target in the transverse direction arrives at the marking apparatus, and the position of the marking target matches the position of a head of the marking apparatus.Type: GrantFiled: March 27, 2002Date of Patent: November 18, 2003Assignee: Tomoegawa Paper Co., Ltd.Inventors: Chikara Murata, Tomohisa Yamamoto, Masami Hirabayashi
-
Publication number: 20030165666Abstract: A filler lens which yields sufficient light diffusivity in both the cases in which light is transmitted from the film side and in which it is transmitted from the filler side and which has a light transmittance superior to that of conventional light diffusing members in which a filler layer is formed as a multilayer, and a production method therefor are disclosed. The filler lens comprises a sheet-shaped base material (1), a binding layer (2) provided on this base material (1) directly or via another layer, and a filler layer (3A) embedded in the surface of the binding layer (2). In the filler layer (3A), the fillers (3) form a monolayer at a high density and part of the filler (3) protrudes from the surface of the binding layer (2).Type: ApplicationFiled: January 27, 2003Publication date: September 4, 2003Applicant: Tomoegawa Paper Co., Ltd.Inventors: Akira Fujiwara, Chikara Murata, Shuji Mitani
-
Patent number: 6519831Abstract: An index-feed processing system that can reduce the machining cost of a product involving a plurality of machining processes is disclosed. The index-feed processing system comprises a plurality of processing units disposed in the longitudinal feeding direction of a workpiece corresponding to a plurality of processing processes so that the processing processes are performed sequentially as the workpiece is indexed. The processing unit body comprises a base plate and a support plate provided at a predetermined distance from the base plate, a slider provided movably between the base plate and the support plate in the direction orthogonally intersecting the base plate and the support plate, and a drive means for driving the slider. The processing units are formed as machining units so that machining operations can be performed by controlling the movement of the slider.Type: GrantFiled: October 10, 2001Date of Patent: February 18, 2003Assignee: Institute of Technology Precision Electrical Discharge Work'sInventors: Shoji Futamura, Takeo Machida, Chikara Murata, Hiromitsu Kaneko
-
Patent number: 6505942Abstract: The present invention provides an anti-reflection material, and a polarization film employing the anti-reflection material, having superior anti-glare properties, anti-reflection properties, and anti-static properties. In the anti-reflection material, an anti-glare layer is provided on the surface of a transparent substrate directly or via another layer, a low reflection layer having lower reflective index than that of the anti-glare layer is provided on the surface of the anti-glare layer, and the frontmost surface of the anti-reflection material is subjected to a surface hydrophilizing treatment.Type: GrantFiled: April 6, 2001Date of Patent: January 14, 2003Assignee: Tomoegawa Paper Co., Ltd.Inventors: Kazuya Ohishi, Chikara Murata
-
Publication number: 20020157236Abstract: An index-feed processing system that can reduce the machining cost of a product involving a plurality of machining processes is disclosed. The index-feed processing system comprises a plurality of processing units disposed in the longitudinal feeding direction of a workpiece corresponding to a plurality of processing processes so that the processing processes are performed sequentially as the workpiece is indexed. The processing unit body comprises a base plate and a support plate provided at a predetermined distance from the base plate, a slider provided movably between the base plate and the support plate in the direction orthogonally intersecting the base plate and the support plate, and a drive means for driving the slider. The processing units are formed as machining units so that machining operations can be performed by controlling the movement of the slider.Type: ApplicationFiled: October 10, 2001Publication date: October 31, 2002Inventors: Shoji Futamura, Takeo Machida, Chikara Murata, Hiromitsu Kaneko
-
Publication number: 20020139273Abstract: There is provided a marking apparatus, a marking method, and a marking system that enable the position of a marking target to be accurately shown, and that reliably enable only that portion containing the marking target to be removed. The marking system has a detector that detects a marking target on a subject material and acquires the position thereof, a marking apparatus having heads capable of marking an optional position in the transverse direction of the subject material, and a control apparatus that sends a marking instruction to the marking apparatus when the position of the marking target in the transverse direction arrives at the marking apparatus, and the position of the marking target matches the position of a head of the marking apparatus.Type: ApplicationFiled: March 27, 2002Publication date: October 3, 2002Inventors: Chikara Murata, Tomohisa Yamamoto, Masami Hirabayashi
-
Patent number: 6383558Abstract: A coating method for uniformly forming a monolayer powder film on a base material, even if fine powders having a volume average particle diameter of 15 &mgr;m or less are employed is disclosed. An adhesive layer consisting of an adhesive having a weight average molecular weight of 250,000 or more is formed on a base material, powders are adhered on the adhesive layer, the powders are embedded in a surface of the adhesive layer by impacts of granular pressure media, adhered surplus powders are removed from this laminate, and a monolayer powder film consisting of a large amount of powders embedded as a monolayer, so that part thereof protrudes from the adhesive layer, is thereby formed on a surface of the adhesive layer.Type: GrantFiled: July 12, 2000Date of Patent: May 7, 2002Assignee: Tomoegawa Paper Co., Ltd.Inventors: Akira Fujiwara, Shuji Mitani, Chikara Murata
-
Publication number: 20020039651Abstract: The present invention provides an adhesive film for a display which exhibits superior anti-reflective properties, anti-static properties and/or infrared ray blocking properties, and in addition, superior image contrast and color reproduction. In an adhesive film for a display comprising at least three layers of a transparent substrate, an optical functional layer, and an adhesive layer, at least two layers of these layers are colored, and these colors are made to be achromatic by mixing.Type: ApplicationFiled: May 30, 2001Publication date: April 4, 2002Inventor: Chikara Murata
-
Publication number: 20020034008Abstract: The present invention provides an anti-reflection material, and a polarization film employing the anti-reflection material, having superior anti-glare properties, anti-reflection properties, and anti-static properties. In the anti-reflection material, an anti-glare layer is provided on the surface of a transparent substrate directly or via another layer, a low reflection layer having lower reflective index than that of the anti-glare layer is provided on the surface of the anti-glare layer, and the frontmost surface of the anti-reflection material is subjected to a surface hydrophilizing treatment.Type: ApplicationFiled: April 6, 2001Publication date: March 21, 2002Inventors: Kazuya Ohishi, Chikara Murata
-
Publication number: 20020018163Abstract: The present invention provides an anti-static film provided with a hard coat layer in which superior optical properties, physical properties, and anti-static properties are maintained, and in addition, in which reflectivity is reduced and interference unevenness is prevented. The anti-static film is produced by providing a hard coat layer on the surface of a transparent substrate directly or via another layer, in which the hard coat layer contains at least resin, conductive material, and low refractive index material, surface electric resistance thereof is 1.0×1011 &OHgr;/□ or less, and the Y value thereof obtained by 5 degree specular reflectance is 4.0% or less.Type: ApplicationFiled: May 1, 2001Publication date: February 14, 2002Inventors: Tomohisa Yamamoto, Chikara Murata
-
Patent number: 6261665Abstract: The present invention provides an anti-reflection material and a polarizing film which can exhibit excellent anti-reflection properties and can obtain a visible image without glittering and without reducing an image contrast while exhibiting an excellent wear resistance and chemical resistance, as well as, exhibiting an excellent stain resistance. A surface-roughened layer (12) is provided on one surface or double surfaces of a transparent substrate (11) directly or via another layer, and the surface-roughened layer (12) comprises an ultraviolet-curing resin comprising at least an epoxy compound and a photo-cationic polymerization initiator.Type: GrantFiled: August 26, 1998Date of Patent: July 17, 2001Assignee: Tomoegawa Paper Co., Ltd.Inventors: Chikara Murata, Kazuya Ohishi, Yasuhiro Matsunaga, Kazuhiro Yamasaki, Yukinori Sakumoto
-
Patent number: 6074741Abstract: The invention provides an antiglare material which exhibits excellent antiglare property by preventing shining of external light in a display and is suitable for display of vivid and high-definition images free of any glare, and a polarizing film using the same. The antiglare material includes a transparent substrate provided with a roughened surface layer on one or both sides thereof. The roughened surface layer is formed from an ultraviolet curing resin containing at least an epoxy compound and a photo-cationic polymerization initiator, and beads of a crosslinked acrylic resin.Type: GrantFiled: March 24, 1998Date of Patent: June 13, 2000Assignee: Tomoegawa Paper Co., Ltd.Inventors: Chikara Murata, Kazuya Ohishi, Yasuhiro Matsunaga, Kazuhiro Yamasaki, Yukinori Sakumoto
-
Patent number: 6003359Abstract: Index-feed deep drawing apparatus comprising a feeding device for intermittently indexing a long-sized work piece, wound in a hoop, in the longitudinal direction, and a plurality of punch/die sets disposed in the feeding direction of the work piece and adapted to sequentially carry out deep drawing at least on the work piece, in which an annealing device adapted to allow the work piece to pass is provided between the deep drawing punch/die sets so as to subject the work piece to intermediate annealing treatment.Type: GrantFiled: April 22, 1999Date of Patent: December 21, 1999Assignee: Institute of Technology Precision Electrical Discharge WorksInventors: Shoji Futamura, Chikara Murata
-
Patent number: 5886819Abstract: An antiglare material capable of exhibiting an excellent antiglare effect by preventing imaging reflection of an external light source and suitable for an image display with sharpness and high resolution as well as a polarizing film by utilizing the same. The antiglare material of the invention is a transparent substrate of which at least one of the surfaces is roughened to a predetermined surface roughness. The polarizing film of the invention is a laminate consisting of a first protective layer which is the above defined antiglare material and a second protective layer laminated onto the unroughened surface of the first protective layer with intervention of a polarizing substrate. The roughened surface of the transparent substrate in the above mentioned antiglare material, which may be used in the above described polarizing film, preferably has a haze value in the range from 1 to 25 according to JIS K7105 and the transparent substrate is preferably a transparent film.Type: GrantFiled: October 25, 1996Date of Patent: March 23, 1999Assignee: Tomoegawa Paper Co., Ltd.Inventors: Chikara Murata, Shinichi Takahashi, Yukinori Sakumoto
-
Patent number: 5746857Abstract: A semi-transmissive semi-reflective film laminate consisting of a semi-transmissive semi-reflective layer and a film, the semi-transmissive semi-reflective layer being set on the film, characterized in that the semi-transmissive semi-reflective layer contains pearl pigment and a light transmissive resin, the average of the angles of orientation of the pearl pigments being less than 30.degree., the film is a film selected from the group consisting of a support body having a vacant space internally and a polarizing film.Type: GrantFiled: September 23, 1996Date of Patent: May 5, 1998Assignee: Tomoegawa Paper Co., Ltd.Inventors: Chikara Murata, Shinichi Takahashi, Mitsuhiro Yoshida