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公开(公告)号：DE69312123T2
公开(公告)日：1997-10-30
申请号：DE69312123
申请日：1993-02-24
Applicant: FUJITSU LTD
Inventor： IWASA SEIICHI , MOTOYAMA HIDEYUKI , YOSHIOKA MAKOTO
Abstract: A keyboard includes a keyboard body (60), a plurality of keys arranged in rows and columns, and switching elements (10) for turning switching elements ON and OFF in response to operations on the plurality of keys. A special key (41a, 41b, 51, 52) among the plurality of keys has a keytop which is at least a stroke length of the special key higher than keytops of keys arranged in a row in which the special key is located.
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公开(公告)号：DE69312123D1
公开(公告)日：1997-08-21
申请号：DE69312123
申请日：1993-02-24
Applicant: FUJITSU LTD
Inventor： IWASA SEIICHI , MOTOYAMA HIDEYUKI , YOSHIOKA MAKOTO
Abstract: A keyboard includes a keyboard body (60), a plurality of keys arranged in rows and columns, and switching elements (10) for turning switching elements ON and OFF in response to operations on the plurality of keys. A special key (41a, 41b, 51, 52) among the plurality of keys has a keytop which is at least a stroke length of the special key higher than keytops of keys arranged in a row in which the special key is located.
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公开(公告)号：DE69111308T2
公开(公告)日：1996-01-11
申请号：DE69111308
申请日：1991-06-04
Applicant: FUJITSU LTD
Inventor： IWASA SEIICHI
IPC: H01H13/52 , H01H13/14 , H01H13/702 , H01H13/705 , H01H13/70
Abstract: A push switch of the invention comprises a switching-element assembly (100) and an actuator assembly (1a) arranged on the switching-element assembly, wherein the switching-element assembly comprises first and second contacts(110a, 110b), the second contact being arranged over and elastically movable towards the first contact and making contact with the first contact when depressed by the actuator assembly. The basic type of actuator assembly includes an airtight enclosure formed by a domed-shaped elastic film and containing a gas, whereby a bottom surface (12) of the airtight enclosure depresses said second contact when the top surface (11) is pressed down. Several modified types of actuator assembly are also disclosed.
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公开(公告)号：DE3481243D1
公开(公告)日：1990-03-08
申请号：DE3481243
申请日：1984-05-04
Applicant: FUJITSU LTD
Inventor： IWASA SEIICHI , NOGIWA KENGO , KANEKO YOSHIYA
Abstract: A magnetic bubble memory device consisting of major/minor loops comprises at least one boot loop (50) and minor loops (61). Control of the read-out of data stored in the boot loop (50) in bubble form is independent of the minor loops. Header data (53) are stored in the boot loop. Faulty loop data (54) of the minor loops is stored in the minor loops with a certain positional relationship to the header data in the boot loop. This results in allowing the device to be applied to a memory having a larger capacity, and allows a higher production yield, and a high-speed detection time for faulty loop data.
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公开(公告)号：CA2080327C
公开(公告)日：1998-09-01
申请号：CA2080327
申请日：1992-10-09
Applicant: FUJITSU LTD
Inventor： MOTOYAMA HIDEYUKI , IWASA SEIICHI
Abstract: A chair having keyboard halves arranged in the armrests. The keys in the keyboard halves can be operated by left and right hands, respectively. The keyboard provided in the chair can be used as a supplemental keyboard in a keyboard system comprising a main keyboard for inputting data to an information processing apparatus. The main keyboard has full keys and the supplemental keyboard has keys identical to at least a part of the keys of the main keyboard for inputting data to the information processing apparatus parallel to the main keyboard. An operator can alternatively use the main and the supplemental keyboard depending on body position.
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Patent Agency Ranking
公开(公告)号：DE69029002T2
公开(公告)日：1997-03-13
申请号：DE69029002
申请日：1990-03-20
Applicant: FUJITSU LTD
Inventor： IWASA SEIICHI , KOSHINO NAGAAKI , UTSUMI KENICHI , NAKADA MASAHIRO
Abstract: A write control method for writing optical disk data wherein pits are written on a medium by a write signal composed of mark signal parts and space signal parts, the length of each pit representing the optical disk data, having the steps of: converting the mark signal parts to pulses and generating a series of pulse trains which correspond to the lengths of the mark signal parts, respectively; controlling length and/or amplitude of or in each of the pulse trains in accordance with the length of the space signal part immediately before the mark signal part concerned; and applying successively the controlled pulse trains to laser irradiation means so that the pits are written. Apparatus for controlling writing is also provided.
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公开(公告)号：CA2012513C
公开(公告)日：1994-09-27
申请号：CA2012513
申请日：1990-03-19
Applicant: FUJITSU LTD
Inventor： IWASA SEIICHI , KOSHINO NAGAAKI , UTSUMI KENICHI , NAKADA MASAHIRO
Abstract: A write control method for writing optical disk data is disclosed wherein pits are written by a write signal composed of mark signal parts and space signal parts, and the length of each pit represents the optical disk data. The method involves converting the mark signal parts to pulses and generating a series of pulse trains which correspond to lengths of the mark signal parts, respectively; controlling the length and/or amplitude of each of the pulse trains in accordance with the length of the space signal part immediately before the mark signal part; and applying successively the controlled pulse trains to a laser irradiation device so that the pits are written.
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公开(公告)号：DE69626102T2
公开(公告)日：2003-06-18
申请号：DE69626102
申请日：1996-11-11
Applicant: FUJITSU LTD
Inventor： IWASA SEIICHI
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公开(公告)号：DE69626102D1
公开(公告)日：2003-03-13
申请号：DE69626102
申请日：1996-11-11
Applicant: FUJITSU LTD
Inventor： IWASA SEIICHI
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公开(公告)号：DE69218499T2
公开(公告)日：1997-07-03
申请号：DE69218499
申请日：1992-06-10
Applicant: FUJITSU LTD
Inventor： IWASA SEIICHI , MOTOYAMA HIDEYUKI
Abstract: In order to achieve a selectible relationship (key force profile curve) between the displacement of a key top (1) and the force used to depress the key, the position of the key top is detected, and a resistive force corresponding to that position is generated and applied to the key top. Hence, a numeral array for the position data and the force data is stored in a memory (19). To apply hysteresis to a key force profile curve, a RS flip-flop (29) whose output is inverted by the position data may be provided to generate different resistive forces in the key top depressing process and the key top returning process.
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