Patent application number | Description | Published |
20090078552 | Key switch and keyboard - A key switch including a base section, a key top, a pair of link members and a switching mechanism. Each link member is provided, at one end region thereof, with a toothed portion meshable with a toothed portion of another link member in a gearing manner and a pivot axle pivotably joined to the base section, and at another end region, with a slide portion slidably engaged with the key top. The base section includes a support plate and a frame member, the frame member being fixedly attached to the upper surface of the support plate. The frame member is provided with a bearing portion pivotably receiving and supporting the pivot axle of each link member. The first end region of each link member is disposed on a lateral side of the frame member and closely to the upper surface of the support plate. | 03-26-2009 |
20100123606 | KEYBOARD - A keyboard includes a plurality of key tops having areas where light is transmitted; a gear link part provided below the key top and configured to vertically move the key top, a housing part provided below the key top, the housing part being configured to hold the gear link part; a rubber actuator configured to provide a reaction force based on vertical motion of the key top; a membrane sheet provided below the rubber actuator and having a contact, the contact being configured to open and close based on the vertical motion of the key top; a support panel provided below the membrane sheet, the support panel being configured to fix the gear link part with the housing part; a light guide plate provided below the support panel; and a light emitting diode configured to emit the light to a side surface of the light guide plate. | 05-20-2010 |
20100294638 | KEY SWITCH UNIT - A key switch unit includes a keycap elongated in a lengthwise direction; a switch mechanism; a supporting plate supporting the switch mechanism; and a key reinforcement mechanism engaging the keycap on its lower side for reinforcement. The key reinforcement mechanism includes a first wire member having a beam part extending over substantially an overall dimension of the keycap in the lengthwise direction; a second wire member having a beam part extending in the lengthwise direction between a region contacting the switch mechanism and a first lengthwise end of the keycap; and a third wire member having a beam part extending in the lengthwise direction between the region and a second lengthwise end of the keycap. The beam parts engage the keycap on its lower side. The first, second, and third wire members have respective end parts turnably supported on the supporting plate. | 11-25-2010 |
20110048908 | KEYBOARD HAVING BACKLIGHT FUNCTION - A keyboard having a backlight function, the keyboard includes a key top having a light permeating region, the key top being where one end of a link member is provided; a membrane sheet having a contact, the contact being conductive when the key top is pushed; a support panel made of metal, the support panel being where another end of the link member is provided; and a light guide plate where a light is guided from a light source. The key top, the membrane sheet, the support panel, and the light guide plate are stacked from a top side; the light guide plate is formed of a member having an elasticity higher than an elasticity of the support panel; and a part of an external edge part of the light guide plate, seen from the top side, projects outside the support panel. | 03-03-2011 |
20120199458 | KEY SWITCH DEVICE AND KEYBOARD - A key switch device including a key top; a pair of link members connected to the key top and interlocked with each other to guide a vertical motion of the key top; a switch mechanism including a membrane sheet switch capable of opening and closing a contact section of an electrical circuit in accordance with the vertical motion of the key top; a flexible thin film sheet attached to the membrane sheet switch; and a housing attached to the thin film sheet, the housing adapted to connect the link members to the thin film sheet. | 08-09-2012 |
20120228107 | PUSH BUTTON-TYPE SWITCH DEVICE - A push button-type switch device includes a pair of fixed contacts, an operable member to be pushed, an actuating member elastically deformable upon the operable member being pushed, a movable contact which short-circuits the pair of fixed contacts due to elastic deformation of the actuating member, and a limiting part arranged to limit a direction in which the operable member moves and making the operable member move in a fixed orientation. The limiting part includes a pair of link members that engage with each other, one ends of the link members rotatably supported by the base portion, and the other ends thereof slidably supported by the operable member. This produces a good click irrespective of a position where the operable member is operated. | 09-13-2012 |
20120229389 | ILLUMINATED KEYBOARD DEVICE - An illuminated keyboard device includes a keyboard unit having a plurality of pushbuttons with a light passing property and switches operating by pushing operation of the plurality of pushbuttons, a backlight unit emitting light toward the keyboard unit, and a sheet-shaped color changing part with a light passing property interposed between the keyboard unit and the backlight unit to change a color of light emitted from the backlight unit. | 09-13-2012 |
Patent application number | Description | Published |
20100010054 | THERAPEUTIC AGENT FOR AMYOTROPHIC LATERAL SCLEROSIS - A novel therapeutic agent for amyotrophic lateral sclerosis. A therapeutic agent for amyotrophic lateral sclerosis, including a compound having xanthine dehydrogenase inhibitory action and not acting as a substrate for the purine salvage pathway. | 01-14-2010 |
20130284573 | KEYBOARD DEVICE - A keyboard device includes: a key top; a pair of link members coupled with the key top; and a support panel that is located below the key top, and includes first holes each housing a part of the link members. | 10-31-2013 |
20140138234 | KEY SWITCH DEVICE, AND METHOD OF MANUFACTURING KEY SWITCH DEVICE - A key switch device includes a key top; a link member that guides an elevating operation of the key top while being interlocking with the key top, the link member including a rotatable shaft and a sliding shaft that is connected to the key top; a membrane sheet that includes a contact that opens and closes in accordance with the elevating operation of the key top; a back plate; a housing that holds the rotatable shaft of the link member to the back plate; and a pushing unit that pushes the link member such that the sliding shaft moves away from the back plate. | 05-22-2014 |
20140318942 | KEY SWITCH AND KEYBOARD - Provided is a key switch that enables sufficiently enhancement of the rigidity of a key top. A key switch includes a support plate; a key top disposed on the support plate; a link configured to link the key top with the support plate; a switch; a first arm disposed on a back surface of the key top between the link and a first short-side end of the key top, and extending in a long-side direction of the key top; a second arm disposed on the back surface of the key top between the link and a second short-side end of the key top, and extending in the long-side direction of the key top; and a reinforcement plate mounted on the key top. The reinforcement plate comprises a short-side part extending in the short-side direction of the key top between the first arm and the second arm. | 10-30-2014 |