| Patent application number | Description | Published |
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| 20090252025 | METHOD AND APPARATUS OF OBTAINING DIRECTIVITY - A method of obtaining directivity in an optical waveguide includes the steps of falling incident light on surface of diffuse reflection members arranged at a center portion of the optical waveguide, generating a first table relative to an amount of emitted light that is acquired at a circumference of the optical waveguide by controlling at least one of an image control factor for changing an image of the incident light and a coordinate control factor for changing coordinates of the incident light with them being changed, and generating a second table relative to a pattern of the light which is incident to the diffuse reflection member by seeking for a combination of the image and the coordinates of the light based on the generated first table. | 10-08-2009 |
| 20090252453 | OPTICAL SELECTOR SWITCH AND SIGNAL-PROCESSING APPARATUS - An optical selector switch contains an optical waveguide that includes a first optical waveguide portion having a first light-transmissivity, a second optical waveguide portion having a second light-transmissivity, reflecting members that reflect light, and a light-dividing device that reflects and transmits light; at least one light-emitting unit that emits the light toward the first optical waveguide portion of the optical waveguide; and at least one light-receiving unit that receives the light which is incident to the first optical waveguide portion of the optical waveguide from the light-emitting unit, based on a directivity due to an angle of the incident light to the first optical waveguide portion of the optical waveguide, wherein the incident light to the first optical waveguide portion is emitted radially toward the circumference of the second optical waveguide portion of the optical waveguide. | 10-08-2009 |
| 20100172613 | OPTICAL SELECTOR SWITCH AND SIGNAL-PROCESSING APPARATUS - An optical selector is provided which enables reliable transmission of a signal from a single or plurality of light output sections to a single or plurality of light input sections. | 07-08-2010 |
| 20100220954 | SIGNAL PROCESSING APPARATUS - In the sending and receiving of a signal through an optical waveguide, an unknown substrate connected to the optical waveguide can be recognized. A signal processing apparatus | 09-02-2010 |
| Patent application number | Description | Published |
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| 20080268276 | PREFORM, HYDROFORMING METHOD, AND HYDROFORMED PRODUCT - A preform with edges overlapped and jointed each other and first and second outer members for forming outer surfaces of a hydroformed product, and reinforcement members that are jointed to the first and second outer members to form reinforcement ribs that divide a hollow cross section of the outer surfaces, the reinforcement members having dimensions capable of suppressing elongation in a tensile direction due to a tensile force that develops during hydroforming. | 10-30-2008 |
| 20100115773 | PREFORM, HYDROFORMING METHOD, AND HYDROFORMED PRODUCT - A preform having edges overlapped and jointed, two outer members for forming outer surfaces of a hydroformed product, and reinforcement members for forming reinforcement ribs that divide a hollow cross section of the hydroformed product, including a joint formed by, when more than three sheet materials for forming the outer members and the reinforcement members are overlapped together, welding a first sheet material on a surface of the overlapped sheet materials to a second sheet material positioned inside the first sheet material, and a space disposed and aligned with a joint plane between the second sheet material and a third sheet material located inside the second sheet material during the welding process. | 05-13-2010 |
