Patents by Inventor Tomohisa Shingai
Tomohisa Shingai 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: 20080024472Abstract: In a display element using cholesteric liquid crystal, to enable a high-speed partial screen rewrite, a region not to be partially rewritten is scanned in high-speed mode within the tolerance of crosstalk of the liquid crystal, and a region to be partially rewritten is partially rewritten by being scanned at a normal speed within a rewritable range with an inexpensive universal driver. As a result, a high-speed rewrite only to an arbitrary particular region can be made even with an inexpensive universal driver IC.Type: ApplicationFiled: September 26, 2007Publication date: January 31, 2008Applicant: FUJITSU LIMITEDInventors: Masaki NOSE, Tomohisa SHINGAI
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Publication number: 20070152995Abstract: A segment block 61, which is formed into a shape like the numeral eight (“8”) constituted by seven segments 63, is connected to the adjacent segment block 61 by way of liquid crystal injection paths 62, each of which has a key-type S-shaped structure. Within the segment block 61, two pairs of segments 63 each consisting of one left and one right segment and which are located on the opposing upper and lower sides, are mutually connected by way of liquid crystal injection paths 64, each of which has a key-type S-shaped structure, and three segments 63 located at the upper, middle and lower parts are respectively connected to the liquid crystal injection paths 64 by way of linearly structured liquid crystal injection paths 65 that are vertically branched respectively from the liquid crystal injection paths 64.Type: ApplicationFiled: February 28, 2007Publication date: July 5, 2007Inventors: Junji Tomita, Masaki Nose, Tomohisa Shingai
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Publication number: 20070103518Abstract: A multi-nozzle ink jet head having a diaphragm that effectively utilizes the force generated by thin-film piezoelectric elements is disclosed. The head (2) has a head substrate (28) in which are formed a plurality of nozzles (39) and a plurality of pressure chambers (29), a multi-layer diaphragm (23-1, 23-2), piezoelectric elements (27), and individual electrodes (26). By making the thickness of the common electrode layer (23-1) of the multi-layer diaphragm be thin but such that problems do not occur during multi-pin driving, optimization of the rigid layer becomes possible, and hence it is possible to use the force generated by the thin-film piezoelectric elements efficiently in ink ejection.Type: ApplicationFiled: December 21, 2006Publication date: May 10, 2007Applicant: FUJI PHOTO FILM CO., LTD.Inventors: Shuji Koike, Yoshiaki Sakamoto, Tomohisa Shingai
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Patent number: 7168793Abstract: A multi-nozzle ink jet head having a diaphragm that effectively utilizes the force generated by thin-film piezoelectric elements is disclosed. The head (2) has a head substrate (28) in which are formed a plurality of nozzles (39) and a plurality of pressure chambers (29), a multi-layer diaphragm (23-1, 23-2), piezoelectric elements (27), and individual electrodes (26). By making the thickness of the common electrode layer (23-1) of the multi-layer diaphragm be thin but such that problems do not occur during multi-pin driving, optimization of the rigid layer becomes possible, and hence it is possible to use the force generated by the thin-film piezoelectric elements efficiently in ink ejection.Type: GrantFiled: April 4, 2005Date of Patent: January 30, 2007Assignee: Fuji Photo Film Co., Ltd.Inventors: Shuji Koike, Yoshiaki Sakamoto, Tomohisa Shingai
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Patent number: 7159971Abstract: A multi-nozzle ink jet head formed through semiconductor processes. The multi-nozzle head has a head substrate in which are formed a plurality of nozzles and a plurality of pressure chambers, a diaphragm that acts as a common electrode and covers the plurality of pressure chambers, piezoelectric body layers that are provided in correspondence with the pressure chambers on the diaphragm, and individual electrode layers that are provided on the piezoelectric body layers and have individual electrode parts corresponding to the pressure chambers and wiring parts for the individual electrode parts. By interposing a low-dielectric-constant layer or an insulating layer in the region of the wiring parts, or not disposing the common electrode in the region of the wiring parts, the electrical capacitance of the driving parts is reduced, and hence a driving lag is prevented from occurring, and moreover unwanted vibration of the piezoelectric bodies is prevented.Type: GrantFiled: October 21, 2005Date of Patent: January 9, 2007Assignee: Fuji Photo Film Co., Ltd.Inventors: Shuji Koike, Yoshiaki Sakamoto, Tomohisa Shingai
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Patent number: 7134172Abstract: In a method of manufacturing a multi-nozzle ink jet head having a plurality of nozzles, cross talk between adjacent elements is suppressed. The head has the nozzles (12), pressure chambers (15), and bimorph drivers. The bimorph drivers have piezos (19) formed on a diaphragm (18). The diaphragm (18) has linear parts (18-1) that convert the generated force from the piezos (19) into displacement, and non-linear parts (18-2) that are provided between the linear parts (18-1) and diaphragm fixing parts. Due to the non-linear parts (18-2), transmission of strain energy to the fixing parts is suppressed, and hence cross talk is suppressed.Type: GrantFiled: April 8, 2005Date of Patent: November 14, 2006Assignee: Fuji Photo Film Co., Ltd.Inventors: Yoshiaki Sakamoto, Shuji Koike, Tomohisa Shingai
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Publication number: 20060198629Abstract: It is an object of the present invention to improve mechanical durability of a portable display device using cholesteric liquid crystal with a memory function such as a non-contact IC card. A display element comprising two substrates 1 which oppose each other and a display portion (liquid crystal) 2 which is sandwiched by the substrates 1, comprises a wall structure 3 bearing a substrate on portions other than the display portion 2, in which the wall is perpendicular to the substrate 1 and a surface perpendicular to the wall is adhered to the substrate 1. Further, in the above display element, an area of the surface which is adhered to the substrate 1 is larger than an area of a surface of the display portion 2 which faces the substrate 1.Type: ApplicationFiled: March 2, 2006Publication date: September 7, 2006Applicants: FUJITSU LIMITED, FUJITSU FRONTECH LIMITEDInventors: Junji Tomita, Masaki Nose, Tomohisa Shingai, Fumio Yamagishi, Shigeru Hashimoto, Yoshiyasu Sugimura, Yoshikazu Yabe, Futoshi Kisuno, Takahiro Hirano, Kenzo Nishide, Shunji Baba
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Publication number: 20060176410Abstract: In an IC card, cholesteric liquid crystal layers reflecting red light and a cholesteric liquid crystal layer reflecting blue light, in a planar state, are laminated, and a voltage is respectively applied to the laminated cholesteric liquid crystal layers, to change the orientation of the cholesteric liquid crystals between the planar state and a focal conic state, so as to transmit or reflect light, thereby displaying predetermined information.Type: ApplicationFiled: March 3, 2006Publication date: August 10, 2006Applicants: FUJITSU LIMITED, FUJITSU FRONTECH LIMITEDInventors: Masaki Nose, Junji Tomita, Tomohisa Shingai, Fumio Yamagishi, Kenzo Nishide, Shigeru Hashimoto, Yoshiyasu Sugimura, Yoshikazu Yabe, Futoshi Kisuno, Takahiro Hirano
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Publication number: 20060124897Abstract: A display apparatus comprises a display unit capable of continuing a display even after the power is shut off, a short range communication unit for receiving display data provided externally and a display control unit for the received data, while an information display apparatus comprises a storage unit for storing display data and a communication unit for transmitting the display data over to the display apparatus, and further the information display apparatus comprises a mechanical quick release mechanism for mounting the display apparatus onto the own apparatus for example, in order to configure a system, which is capable of detachable attachment, between the display apparatus having no power supply and the information display apparatus, such as a wireless terminal, which sends display data and power to the display apparatus.Type: ApplicationFiled: February 16, 2006Publication date: June 15, 2006Applicant: FUJITSU LIMITEDInventors: Tomohisa SHINGAI, Junji Tomita, Masaki Nose, Fumio Yamagishi
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Publication number: 20060066693Abstract: A multi-nozzle ink jet head formed through semiconductor processes. The multi-nozzle head has a head substrate in which are formed a plurality of nozzles and a plurality of pressure chambers, a diaphragm that acts as a common electrode and covers the plurality of pressure chambers, piezoelectric body layers that are provided in correspondence with the pressure chambers on the diaphragm, and individual electrode layers that are provided on the piezoelectric body layers and have individual electrode parts corresponding to the pressure chambers and wiring parts for the individual electrode parts. By interposing a low-dielectric-constant layer or an insulating layer in the region of the wiring parts, or not disposing the common electrode in the region of the wiring parts, the electrical capacitance of the driving parts is reduced, and hence a driving lag is prevented from occurring, and moreover unwanted vibration of the piezoelectric bodies is prevented.Type: ApplicationFiled: October 21, 2005Publication date: March 30, 2006Applicant: FUJI PHOTO FILM CO., LTD.Inventors: Shuji Koike, Yoshiaki Sakamoto, Tomohisa Shingai
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Patent number: 7018024Abstract: A multi-nozzle ink jet head formed by semiconductor processes is disclosed. The multi-nozzle head has a nozzle plate (38) in which are formed a plurality of nozzles (39), an FPC (42) in which are formed a plurality of ink chambers (29), and energy generating layers (23, 26, 27), and wiring patterns (42A, 42B) for the energy generating layers are provided on the FPC (42), thus making connection to external circuitry easy.Type: GrantFiled: October 8, 2004Date of Patent: March 28, 2006Assignee: Fuji Photo Film Co., Ltd.Inventors: Shuji Koike, Yoshiaki Sakamoto, Tomohisa Shingai
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Patent number: 6988792Abstract: A multi-nozzle ink jet head formed through semiconductor processes. The multi-nozzle head has a head substrate in which are formed a plurality of nozzles and a plurality of pressure chambers, a diaphragm that acts as a common electrode and covers the plurality of pressure chambers, piezoelectric body layers that are provided in correspondence with the pressure chambers on the diaphragm, and individual electrode layers that are provided on the piezoelectric body layers and have individual electrode parts corresponding to the pressure chambers and wiring parts for the individual electrode parts. By interposing a low-dielectric-constant layer or an insulating layer in the region of the wiring parts, or not disposing the common electrode in the region of the wiring parts, the electrical capacitance of the driving parts is reduced, and hence a driving lag is prevented from occurring, and moreover unwanted vibration of the piezoelectric bodies is prevented.Type: GrantFiled: August 19, 2004Date of Patent: January 24, 2006Assignee: Fuji Photo Film Co., Ltd.Inventors: Shuji Koike, Yoshiaki Sakamoto, Tomohisa Shingai
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Patent number: 6978543Abstract: A printer having a plurality of nozzles each for discharging ink supplied from an ink supply part (50) comprises a head main body (3) including a plurality of pressure chambers each provided for each of the nozzles and filled up with ink, a plurality of pressurizers each provided for each of the pressure chambers for pressurizing the pressure chamber to discharge the ink in the pressure chamber through the nozzle and ink supply passages for supplying the ink from the ink supply part (50) to the plurality of pressure chambers, and a joint section (8) protruded from the head main body (3) for joining the ink supply part (50) to the head main body (3).Type: GrantFiled: August 6, 2003Date of Patent: December 27, 2005Assignee: Fuji Photo Film Co., Ltd.Inventors: Yoshiaki Sakamoto, Shuji Koike, Tomohisa Shingai
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Publication number: 20050185029Abstract: A multi-nozzle ink jet head having a diaphragm that effectively utilizes the force generated by thin-film piezoelectric elements is disclosed. The head (2) has a head substrate (28) in which are formed a plurality of nozzles (39) and a plurality of pressure chambers (29), a multi-layer diaphragm (23-1, 23-2), piezoelectric elements (27), and individual electrodes (26). By making the thickness of the common electrode layer (23-1) of the multi-layer diaphragm be thin but such that problems do not occur during multi-pin driving, optimization of the rigid layer becomes possible, and hence it is possible to use the force generated by the thin-film piezoelectric elements efficiently in ink ejection.Type: ApplicationFiled: April 4, 2005Publication date: August 25, 2005Applicant: FUJI PHOTO FILM CO., LTD.Inventors: Shuji Koike, Yoshiaki Sakamoto, Tomohisa Shingai
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Publication number: 20050168538Abstract: In a multi-nozzle ink jet head having a plurality of nozzles, cross talk between adjacent elements is suppressed. The head has the nozzles (12), pressure chambers (15), and bimorph drivers. The bimorph drivers have piezos (19) formed on a diaphragm (18). The diaphragm (18) has linear parts (18-1) that convert the generated force from the piezos (19) into displacement, and non-linear parts (18-2) that are provided between the linear parts (18-1) and diaphragm fixing parts. Due to the non-linear parts (18-2), transmission of strain energy to the fixing parts is suppressed, and hence cross talk is suppressed.Type: ApplicationFiled: April 8, 2005Publication date: August 4, 2005Applicant: FUJI PHOTO FILM CO., LTD.Inventors: Yoshiaki Sakamoto, Shuji Koike, Tomohisa Shingai
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Patent number: 6921159Abstract: In a multi-nozzle ink jet head having a plurality of nozzles, cross talk between adjacent elements is suppressed. The head has the nozzles (12), pressure chambers (15), and bimorph drivers. The bimorph drivers have piezos (19) formed on a diaphragm (18). The diaphragm (18) has linear parts (18-1) that convert the generated force from the piezos (19) into displacement, and non-linear parts (18-2) that are provided between the linear parts (18-1) and diaphragm fixing parts. Due to the non-linear parts (18-2), transmission of strain energy to the fixing parts is suppressed, and hence cross talk is suppressed.Type: GrantFiled: September 25, 2002Date of Patent: July 26, 2005Assignee: Fuji Photo Film Co., Ltd.Inventors: Yoshiaki Sakamoto, Shuji Koike, Tomohisa Shingai
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Publication number: 20050151797Abstract: A multi-nozzle ink jet head using piezoelectric elements and a manufacturing method thereof are disclosed. A head (1) has a nozzle member (10) in which a plurality of nozzles (12) are formed, a pressure chamber wall member (14) in which a plurality of pressure chambers (15) are formed, and piezoelectric type actuators that have a diaphragm (18) and a plurality of piezo elements (19) and apply pressure to each of the plurality of pressure chambers for ejecting ink from the nozzles. A rigid coating member (23, 25) is provided on inner surfaces of the pressure chamber walls or on parts of the diaphragm in contact with the pressure chamber wall member, thus increasing the rigidity of the pressure chamber walls.Type: ApplicationFiled: February 28, 2005Publication date: July 14, 2005Applicant: FUJI PHOTO FILM CO., LTD.Inventors: Yoshiaki Sakamoto, Shuji Koike, Tomohisa Shingai
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Publication number: 20050140746Abstract: A multi-nozzle ink jet head using piezoelectric elements and a manufacturing method thereof are disclosed. A head (1) has a nozzle member (10) in which a plurality of nozzles (12) are formed, a pressure chamber wall member (14) in which a plurality of pressure chambers (15) are formed, and piezoelectric type actuators that have a diaphragm (18) and a plurality of piezo elements (19) and apply pressure to each of the plurality of pressure chambers for ejecting ink from the nozzles. A rigid coating member (23, 25) is provided on inner surfaces of the pressure chamber walls or on parts of the diaphragm in contact with the pressure chamber wall member, thus increasing the rigidity of the pressure chamber walls.Type: ApplicationFiled: February 28, 2005Publication date: June 30, 2005Applicant: FUJI PHOTO FILM CO., LTD.Inventors: Yoshiaki Sakamoto, Shuji Koike, Tomohisa Shingai
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Patent number: 6902263Abstract: A multi-nozzle ink jet head having a diaphragm that effectively utilizes the force generated by thin-film piezoelectric elements is disclosed. The head (2) has a head substrate (28) in which are formed a plurality of nozzles (39) and a plurality of pressure chambers (29), a multi-layer diaphragm (23-1, 23-2), piezoelectric elements (27), and individual electrodes (26). By making the thickness of the common electrode layer (23-1) of the multi-layer diaphragm be thin but such that problems do not occur during multi-pin driving, optimization of the rigid layer becomes possible, and hence it is possible to use the force generated by the thin-film piezoelectric elements efficiently in ink ejection.Type: GrantFiled: March 24, 2004Date of Patent: June 7, 2005Assignee: Fuji Photo Film Co., Ltd.Inventors: Shuji Koike, Yoshiaki Sakamoto, Tomohisa Shingai
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Patent number: 6877843Abstract: A multi-nozzle ink jet head using piezoelectric elements and a manufacturing method thereof are disclosed. A head (1) has a nozzle member (10) in which a plurality of nozzles (12) are formed, a pressure chamber wall member (14) in which a plurality of pressure chambers (15) are formed, and piezoelectric type actuators that have a diaphragm (18) and a plurality of piezo elements (19) and apply pressure to each of the plurality of pressure chambers for ejecting ink from the nozzles. A rigid coating member (23, 25) is provided on inner surfaces of the pressure chamber walls or on parts of the diaphragm in contact with the pressure chamber wall member, thus increasing the rigidity of the pressure chamber walls.Type: GrantFiled: September 27, 2002Date of Patent: April 12, 2005Assignee: Fuji Photo Film Co., Ltd.Inventors: Yoshiaki Sakamoto, Shuji Koike, Tomohisa Shingai