Bizarre Patents
Mountable Printable Placard With Headband
A resilient headband in a shape for being mounted on the head of the user. The headband is equipped with a longitudinal slotted member for holding a placard.
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| Number | Title | Issue Date |
| 8311433 | Image forming device including a cleaning member and a method of operating the same An image forming device having an detachable image forming unit that has an image carrier and an opening that exposes a part of the surface of the image carrier includes a determination unit that determines a cleaning time for the image carrier; and a rotation contr... | 11/13/2012 |
| 8175469 | Image forming device with variable out-of-toner and low-toner display An image forming device includes an imaging apparatus configured to form an image according to image data and to maintain information associated with performance of the imaging apparatus, a replaceable member that is mounted in the imaging apparatus and used for for... | 05/08/2012 |
| 8005381 | Image forming apparatus An image forming apparatus includes a latent image bearing body that bears a latent image, a charging member applied with a charging voltage and configured to charge a surface of the latent image bearing body, a developer bearing body applied with a developing volta... | 08/23/2011 |
| 7539429 | Image forming apparatus having a stable image density An image forming apparatus is provided capable of preventing fog from happening and obtaining more stable image density, which includes an image carrier; a charging section for charging surface of the image carrier; an exposing section for forming an electrostatic l... | 05/26/2009 |
| 6563138 | Low-cost, high-density light-emitting-diode array and fabrication method thereof A light-emitting-diode array is formed on a substrate having an upper layer of a semiconducting material and a lower layer of an insulating or semi-insulating material. The upper layer is divided into blocks by isolation channels that cut completely throu... | 05/13/2003 |
| 6559879 | LED array head, circuit board, and LED array chip An LED array head includes a circuit board and a plurality of LED array chips mounted thereon. Each of the plurality of LED array chips has a plurality of light-emitting elements aligned and exposed on a surface thereof. The plurality of LED array chips a... | 05/06/2003 |
| 6388696 | Led array, and led printer head According to the present invention, a plurality of p-type semiconductor layers 13 are formed in a single row and a first layer insulating film 12 having first opening portions 16a and an n-side opening portion 17 is formed on the layers in an n-type semic... | 05/14/2002 |
| 6377292 | LED print head with reduced reflection of light leaking from edges of LED array chips A print head has an array of surface-emitting light-emitting diodes formed in a chip, near one edge of the chip. The chip is mounted on a conductive pattern on the component surface of a printed circuit board. The printed circuit board includes a material... | 04/23/2002 |
| 6222208 | Light-emitting diode and light-emitting diode array A light-emitting diode includes a first semiconductor epitaxial layer of a first conduction type, a second semiconductor epitaxial layer of the first conduction type laminated upon the first semiconductor epitaxial layer and having an energy band gap grea... | 04/24/2001 |
| 6211537 | LED array A 1200 dpi LED may be manufactured without highly accurate mask alignment and provide good light radiation efficiency. A first interlayer dielectric is formed on a semiconductor substrate and has a plurality of first windows formed therein and aligned in ... | 04/03/2001 |
| 6190935 | Low-cost, high-density light-emitting-diode array and fabrication method thereof A light-emitting-diode array is formed on a substrate having an upper layer of a semiconducting material and a lower layer of an insulating or semi-insulating material. The upper layer is divided into blocks by isolation channels that cut completely throu... | 02/20/2001 |
| 6180961 | Light emitting semiconductor device with stacked structure A high-density semiconductor device and semiconductor device array exhibiting high light emission efficiency which can be mass-produced at low cost with high yield is provided. An LED array comprises a structure wherein an n-type GaAs buffer layer 102 is ... | 01/30/2001 |
| 6136627 | High-resolution light-sensing and light-emitting diode array and fabrication method thereof A light-sensing/emitting diode array chip has impurity diffusion regions with a depth of at least 0.5 μm but not more than 2 μm in a semiconductor substrate. Each impurity diffusion region is preferably divided into a first region, used for emitting or ... | 10/24/2000 |
| 6133588 | Light-emitting element array and fabrication method with separate light-emitting and current-conducting diffusion areas A light-emitting element is formed in a semiconductor substrate having a semi-insulating upper layer and a conductive lower layer. An impurity is diffused into both layers, forming a light-emitting area by creating a pn junction in the lower layer. An add... | 10/17/2000 |
| 6064418 | Led array, print head, and electrophotographic printer In an array of light-emitting diodes formed by diffusion of an impurity into a semiconductor substrate, the width of the diodes in the array direction is between four-tenths and five-tenths of the array pitch. The width of the windows above the diodes is ... | 05/16/2000 |
| 6063644 | Light-emitting element and array with etched surface, and fabrication method thereof A light-emitting element, or array of light-emitting elements, is formed by diffusion of an impurity into a semiconductor substrate, creating a light-emitting region. Following the diffusion, the surface zone of the light-emitting region, which includes c... | 05/16/2000 |
| 5997152 | Light emitting element module and printer head using the same A light emitting element module is provided including a board and plural chips arranged in the form of an array on the board. Each chip includes at least one light emitting element having a light emitting function and/or a photosensing function. The chips... | 12/07/1999 |
| 5972729 | Method of manufacturing light-receiving/emitting diode array chip A method of manufacturing a light-emitting or a light-receiving diode array chip. A first interlayer dielectric is formed in each of a plurality of chip areas on a substrate of a first conductivity type. Impurity diffusion regions of a second conductivity... | 10/26/1999 |
| 5955747 | High-density light-emitting-diode array utilizing a plurality of isolation channels A light-emitting-diode array is formed on a substrate having an upper layer of a semiconducting material and a lower layer of an insulating or semi-insulating material. The upper layer is divided into blocks by isolation channels that cut completely throu... | 09/21/1999 |
| 5869221 | Method of fabricating an LED array A method of fabricating an LED array includes forming a first insulating film composed of aluminum oxide on a semiconductor substrate of a first conductive type; patterning the first insulating film by photolithography to form a plurality of first windows... | 02/09/1999 |
| 5821567 | High-resolution light-sensing and light-emitting diode array A light-sensing/emitting diode array chip has impurity diffusion regions with a depth of at least 0.5 μm but not more than 2 μm in a semiconductor substrate. Each impurity diffusion region is preferably divided into a first region, used for emitting or ... | 10/13/1998 |
| 5733689 | Led array fabrication process with improved unformity A method of fabricating an LED array includes (a) forming a first insulating film composed of aluminum oxide on a semiconductor substrate of a first conductive type; (b) patterning the first insulating film by photolithography to form a plurality of first... | 03/31/1998 |
| 5600157 | Light-emitting and light-sensing diode array device, and light-emitting and light-sensing diode with improved sensitivity According to a first aspect of the invention, a light-emitting and light-sensing diode has a doped region with a depth not exceeding 2 μm, for adequate sensitivity, and an impurity concentration of at least 5×1020 atoms/cm-3, for a... | 02/04/1997 |
| 5530268 | Light-emitting diode array with anti-reflection coating providing reduced internal reflection An LED array is fabricated by forming an insulating film on a semiconductor substrate of a first conductive type, forming a plurality of windows in the insulating film, and diffusing an impurity of a second conductive type through these windows to create ... | 06/25/1996 |
| 5523590 | LED array with insulating films An LED array, including a semiconductor substrate of a first conductive type; a first insulating film formed on the substrate, comprising aluminum oxide and having a plurality of first windows; a second insulating film formed on the first insulating film,... | 06/04/1996 |
| 5457488 | Method and apparatus for controlling array of light-emitting elements An array of light-emitting elements is switched on and off to produce a graded-intensity image on a photosensitive medium. Each light-emitting element is controlled by M-bit data representing the intensity of one image pixel, where M is a fixed integer gr... | 10/10/1995 |
