Patents by Inventor Hajime Ishii
Hajime Ishii 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).
-
Patent number: 7537074Abstract: A washer tank is integrally formed with a front air duct, and the washer tank and the front air duct are installed within a cab. Thus, the washer tank can be installed within the cab by the use of spaces around the air duct. This arrangement makes it possible to install the washer tank within the cab in an unintrusive way and in the vicinity of a washer liquid spout nozzle without necessitating to provide an installation space exclusively for the washer tank.Type: GrantFiled: February 18, 2005Date of Patent: May 26, 2009Assignee: Hitachi Construction Machinery Co., Ltd.Inventors: Hajime Ishii, Tomoyuki Tanaka, Shogo Kimura
-
Patent number: 7530418Abstract: A pattern selector valve (32) is lodged in a seat supporting stool (22) which supports an operator's seat (23) thereon, with a switch lever (32B) at a front side of the seat supporting stool. An operator can easily check out the position of the switch lever (32B) of the pattern selector valve (32) at the time of getting onto the operator's seat (23). Besides, the switch lever (32B) of the pattern selector valve (32) can be easily changed over to a different pattern position in the vicinity of the operator's seat (23). Check-out and change-over of the switch lever (32B) are facilitated and can be carried out in a secure manner under guidance of a pattern indicator (39) which is provided on a front cover (34).Type: GrantFiled: January 28, 2005Date of Patent: May 12, 2009Assignee: Hitachi Construction Machinery Co., Ltd.Inventors: Hajime Ishii, Shigeru Hirasawa, Hiroshi Tabeta, Shogo Kimura
-
Patent number: 7338114Abstract: A front side of a floor panel (15) is pivotally supported on a floor panel support mechanism (21), permitting tilting of the floor panel in a forward direction with respect to a revolving frame (5) by way of a tilting mechanism (30). The tilting mechanism (30) has a guide rail assembly (33) which is pivotally supported on the side of the revolving frame (5), a screw rod (34) which is rotatably supported on the guide rail assembly (33), and a displacement member (35) which is attached to the floor panel (15) and held in threaded engagement with the screw rod (34). The floor panel (15) and a cab (29) are tilted up in the forward direction upon rotationally driving the screw rod (34) to translate the displacement member (35) constituting the tilting mechanism (30).Type: GrantFiled: August 20, 2004Date of Patent: March 4, 2008Assignee: Hitachi Construction Machinery Co., Ltd.Inventors: Hajime Ishii, Shogo Kimura, Teruo Irino, Hajime Yoshida, Shigeru Hirasawa
-
Publication number: 20080035401Abstract: A pattern selector valve (32) is lodged in a seat supporting stool (22) which supports an operator's seat (23) thereon, with a switch lever (32B) at a front side of the seat supporting stool. An operator can easily check out the position of the switch lever (32B) of the pattern selector valve (32) at the time of getting onto the operator's seat (23). Besides, the switch lever (32B) of the pattern selector valve (32) can be easily changed over to a different pattern position in the vicinity of the operator's seat (23). Check-out and change-over of the switch lever (32B) are facilitated and can be carried out in a secure manner under guidance of a pattern indicator (39) which is provided on a front cover (34).Type: ApplicationFiled: January 28, 2005Publication date: February 14, 2008Inventors: Hajime Ishii, Shigeru Hirasawa, Hiroshi Tabeta, Shogo Kimura
-
Patent number: 7287810Abstract: Right and left floor panel support mechanisms (40) and (46) are provided on a revolving frame (5) to support a front end of a floor panel (21) pivotally for permitting tilt-up and tilt-down of the floor panel (21). A tilting mechanism (54) is provided between the revolving frame (5) and the floor panel (21) for tilting the floor panel (21) together with a canopy (31). Through a plural number of vibration insulators (20), a floor panel mount plate (19) is mounted on a support member (12) which is located in a rear side portion of the revolving frame (5). A housing mount plate (24) of the floor panel (21) and a base plate (37) of the canopy (31) are detachably fixed to the floor panel mount plate (19) by the use of fastening bolts (39). After removing the fastening bolts (39), the floor panel (21) and canopy (31) can be tilted together without necessitating to disassemble the vibration insulators (20).Type: GrantFiled: October 5, 2004Date of Patent: October 30, 2007Assignee: Hitachi Construction Machinery Co., Ltd.Inventors: Hajime Ishii, Shogo Kimura, Shigeru Hirasawa, Tomoyuki Tanaka, Hiroshi Tabeta
-
Publication number: 20070132277Abstract: A folding type door is fitted in a cab box. Two door panels and are disposed substantially in the same vertical plane as a left side cover of an upper revolving structure when said door in a closed position. Catches and are provided in a left rear side section of the cab box. Provided on door panels and of the folding type door are strikers and to be attachably or detachably engaged with the catches and separately of each other. When the folding type door is opened, the respective door panels and are each retained in an open door position by engagement of two sets of strikers and and catches and which prevents rattling movements of each door panel to retain the folding type door in a stabilized state.Type: ApplicationFiled: May 26, 2005Publication date: June 14, 2007Inventors: Hajime Ishii, Shogo Kimura, Tomoyuki Tanaka
-
Publication number: 20070131262Abstract: A washer tank is integrally formed with a front air duct, and the washer tank and the front air duct are installed within a cab. Thus, the washer tank can be installed within the cab by the use of spaces around the air duct. This arrangement makes it possible to install the washer tank within the cab in an unintrusive way and in the vicinity of a washer liquid spout nozzle without necessitating to provide an installation space exclusively for the washer tank.Type: ApplicationFiled: February 18, 2005Publication date: June 14, 2007Inventors: Hajime Ishii, Tomoyuki Tanaka, Shogo Kimura
-
Publication number: 20060266573Abstract: Right and left floor panel support mechanisms (40) and (46) are provided on a revolving frame (5) to support a front end of a floor panel (21) pivotally for permitting tilt-up and tilt-down of the floor panel (21). A tilting mechanism (54) is provided between the revolving frame (5) and the floor panel (21) for tilting the floor panel (21) together with a canopy (31). Through a plural number of vibration insulators (20), a floor panel mount plate (19) is mounted on a support member (12) which is located in a rear side portion of the revolving frame (5). A housing mount plate (24) of the floor panel (21) and a base plate (37) of the canopy (31) are detachably fixed to the floor panel mount plate (19) by the use of fastening bolts (39). After removing the fastening bolts (39), the floor panel (21) and canopy (31) can be tilted together without necessitating to disassemble the vibration insulators (20).Type: ApplicationFiled: October 5, 2004Publication date: November 30, 2006Inventors: Hajime Ishii, Shogo Kimura, Shigeru Hirasawa, Tomoyuki Tanaka, Hiroshi Tabeta
-
Publication number: 20060254095Abstract: A front side of a floor panel (15) is pivotally supported on a floor panel support mechanism (21), permitting tilting of the floor panel in a forward direction with respect to revolving frame (5) by way of a tilting mechanism (30). The tilting mechanism (30) has a guide rail assembly (33) which is pivotally supported on the side of the revolving frame (5), a screw rod (34) which is rotatably supported on the guide rail assembly (33), and a displacement member (35) which is attached to the floor panel (15) and held in threaded engagement with the screw rod (34). The floor panel (15) and a cab (29) are tilted up in the forward direction upon rotationally driving the screw rod (34) to translate the displacement member (35) constituting the tilting mechanism (30).Type: ApplicationFiled: August 20, 2004Publication date: November 16, 2006Inventors: Hajime Ishii, Shogo Kimura, Teruo Irino, Hajime Yoshida, Shigeru Hirasawa
-
Publication number: 20060170251Abstract: A lower floor panel (20) and an upper floor panel (22) which is having a sunken storage portion (20D) is provided in front of a seat supporting base (12) which supports an operator's seat (16) with in a cab (11). A storage space (24) is provided between a sunken storage portion (20D) in the lower floor panel (20) and a flat horizontal surface (22A) of the upper floor panel (22). This storage space (24) can be used for installation of an air-conditioning unit (25). This lo means that the air-conditioning unit (25) can be accommodated in a floor portion in front of the operator's seat (16), permitting to suppress the height of the cab (11) to an appropriate level. In addition, installation of the air-conditioning unit (25) can make assembling and maintenance work far easier.Type: ApplicationFiled: February 25, 2004Publication date: August 3, 2006Inventors: Hajime Ishii, Masayuki Yuoue, Shigeru Hirasawa, Hiroshi Tabeta, Shogo Kimura
-
Patent number: 6892110Abstract: A numerical control unit having a load monitoring function for monitoring a load on a tool drive source during a machining operation. The numerical control unit includes a load monitoring section for monitoring the load on an electric motor; a wear recognizing section for recognizing the current extent of tool wear; a storing section for storing a plurality of preset limit load values corresponding individually to predetermined various extents of tool wear; a calculating section for calculating the current limit load value corresponding to the current extent of tool wear recognized in the wear recognizing section, based on the plurality of preset limit load values stored in the storing section; and a comparing section for comparing the load on the electric motor, monitored in the load monitoring section, to the current limit load value calculated in the calculating section, and for judging on the abnormality of the load.Type: GrantFiled: February 19, 2004Date of Patent: May 10, 2005Assignee: Fanuc LTDInventors: Michiya Inoue, Hajime Ishii
-
Publication number: 20040174130Abstract: A numerical control unit having a load monitoring function for monitoring a load on a tool drive source during a machining operation. The numerical control unit includes a load monitoring section for monitoring the load on an electric motor; a wear recognizing section for recognizing the current extent of tool wear; a storing section for storing a plurality of preset limit load values corresponding individually to predetermined various extents of tool wear; a calculating section for calculating the current limit load value corresponding to the current extent of tool wear recognized in the wear recognizing section, based on the plurality of preset limit load values stored in the storing section; and a comparing section for comparing the load on the electric motor, monitored in the load monitoring section, to the current limit load value calculated in the calculating section, and for judging on the abnormality of the load.Type: ApplicationFiled: February 19, 2004Publication date: September 9, 2004Applicant: Fanuc Ltd.Inventors: Michiya Inoue, Hajime Ishii
-
Patent number: 6722174Abstract: According to an apparatus and a method for manufacturing a hot-rolled steel plate, a roughing process for reducing a thickness of a continuously cast slab is performed to obtain a sheet bar, and a finishing rolling process for rolling the sheet bar is effected to produce a hot-rolled steel plate having a predetermined plate thickness. After cooling down, the hot-rolled steel plate is then wound. A pair of dies 6 each of which has a tapered portion 6b on an input side and a parallel portion 6b on an output side are used in at least part of the roughing process. Further, before performing plate thickness pressing to a material in a plate thickness direction by using the dies 6, at least one of a front end and a rear end of the material is pressed in a widthwise direction to be pre-formed.Type: GrantFiled: February 26, 2001Date of Patent: April 20, 2004Assignees: NKK Corporation, Ishikawajima-Harima Heavy Industries Co., Ltd.Inventors: Takashi Nishii, Masao Mikami, Hajime Ishii, Kenichi Ide, Toshio Iwanami, Shirou Osada, Satoshi Murata, Sadakazu Masuda
-
Patent number: 6463652Abstract: A high-quality hot rolled steel sheet is manufactured with a high production efficiency and a low cost, from a long, hot slab, using a combination of continuous casting facilities and a plate reduction press machine.Type: GrantFiled: July 26, 1999Date of Patent: October 15, 2002Assignees: Ishikawajima-Harima Heavy Industries Co., Ltd., NKK CorporationInventors: Shigeki Narushima, Kenichi Ide, Yasushi Dodo, Kinichi Higuchi, Hisashi Honjou, Hajime Ishii, Nobuhiro Tazoe, Yasuhiro Fujii, Kazuyuki Sato, Sadakazu Masuda, Shuichi Yamashina, Satoshi Murata, Masaaki Yamamoto, Takumasa Terauchi, Toru Minote, Shinji Okazaki, Yoichi Motoyashiki
-
Patent number: 4577480Abstract: In a rolling mill of the type in which horizontal pushing forces are exerted to a work roll exerted with a rolling force so as to bend the work roll, thereby controlling the flatness of a strip being rolled, a method and apparatus for controlling rolling correction in the rolling mill for eliminating variations in rolling load due to the horizontal pushing forces.Type: GrantFiled: June 7, 1984Date of Patent: March 25, 1986Assignees: Ishikawajima-Harima Jukogyo Kabushiki Kaisha, Nippon Kokan Kabushiki KaishaInventors: Kanji Kizaki, Hajime Ishii, Noboru Taguchi, Hiroshi Kuwamoto
-
Patent number: 3991451Abstract: An organic film capacitor element comprising a dielectric polyvinylidene fluoride film, elongated and subsequently heat treated, and an electrode foil and a method for preparing same are disclosed.Type: GrantFiled: December 13, 1971Date of Patent: November 16, 1976Assignees: Tokyo Denki Kabushiki Kaisha, Kureha Kagaku Kogyo Kabushiki KaishaInventors: Toshiro Maruyama, Matsuo Hirosawa, Hajime Ishii, Hiroaki Sato