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Hidetaka Okada, Tokyo JP

Hidetaka Okada, Tokyo JP

Patent application numberDescriptionPublished
20090027910VEHICLE LIGHTING ASSEMBLY AND LIGHT GUIDING LENS FOR USE IN VEHICLE LIGHTING ASSEMBLY - A vehicle lighting assembly is provided which uses a light guiding lens without a dedicated light source. The vehicle lighting assembly can include: a light source configured to emit light rays used at least for forming a target light distribution; a light guiding member made of a transparent or semi-transparent material, the light guiding member including a plurality of individual reflective light emitting surfaces configured to be illuminated with light rays entering the light guiding member from the light source, the light guiding member including another reflective light emitting surface configured to be illuminated with parallel light rays entering the light guiding member; and a reflector having a first reflective surface configured to reflect light rays emitted from the light source for use in forming the target light distribution and a second reflective surface configured to adjust a leak portion of light rays that are not for use in forming the target light distribution so that the leak portion of light rays are made parallel with each other.01-29-2009
20090034277Vehicle Lamp - A vehicle lamp including a light-emitting semiconductor device can have high visibility even in an area outside of the standard light distribution pattern. The vehicle lamp can include at least one light-emitting semiconductor device and at least one lens that includes both a first lens formation and second lens formation. An optical axis of the at least one lens can correspond with that of the at least one light-emitting semiconductor device. The first lens formation can receive a strong light that is within the range of a half-value angle of light emitted from the at least one light-emitting semiconductor and which forms a standard light distribution pattern. The second lens formation can receive a weak light that is beyond the range of the half-value angle and forms a light distribution pattern in an area outside of the standard light distribution formed by the first lens formation.02-05-2009
20090061205CRYSTALLINE POLYMER MICROPOROUS FILM, MANUFACTURING METHOD OF THE SAME, AND FILTRATION FILTER - To provide a crystalline polymer microporous film including: a laminate consisting of two or more crystalline polymer layers formed of crystalline polymers; and multiple pores penetrating through the laminate in the thickness direction thereof, wherein an average pore size of each of the crystalline polymer layer changes along the thickness thereof.03-05-2009
20090127187CRYSTALLINE POLYMER MICROPOROUS FILM, MANUFACTURING METHOD OF THE SAME, AND FILTRATION FILTER - A crystalline polymer microporous film including: a plurality of pores penetrating through from a first surface to a second surface, wherein the average pore size of pores at the first surface is larger than the average pore size of pores at the second surface, the average pore size of pores in the crystalline microporous film continuously changes from the first surface toward the second surface, and an exposed surface of the crystalline polymer microporous film has hydrophilicity represented by a wettability index of 30 dyne/cm or more.05-21-2009
20090159526CRYSTALLINE POLYMER MICROPOROUS MEMBRANE, METHOD FOR PRODUCING SAME, AND FILTER FOR FILTRATION - To provide a membrane capable of efficiently collecting fine particles for a long period of time, disclosed is a polytetrafluoroethylene microporous membrane wherein the mean pore size in the surface of the membrane is larger than the mean pore size in the back thereof and the mean pore size continuously changes from the surface toward the back.06-25-2009
20090201694VEHICLE LAMP - A vehicle lamp can include a light source, a reflector having a parabolic reflective surface for reflecting light beams from the light source, and a lens formed in a generally rectangular shape (i.e., square, rectangular, substantially square, substantially rectangular). The lens can include a plurality of lens cut portions for diffusing the generally parallel light beams from the reflector. The principal optical axis of the vehicle lamp can be aligned with the center of the lens. A plurality of ridge lines or valley lines can extend radially from the principal optical axis to divide the generally rectangular lens into at least a first lens cut portion, a second lens cut portion, a third lens cut portion, and a fourth lens cut portion. The first lens cut portion can be a substantial mirror image of the second lens cut portion, and the third lens cut portion can be a substantial mirror image of the fourth lens cut portion. Part of the parallel light beams from the reflector can be diffused in the left and right directions through the first and second lens cut portions, and at the same time, part of the parallel light beams from the reflector can be diffused in the up and down directions through the third and fourth lens cut portions.08-13-2009
20110122615LENS AND LIGHTING FIXTURE UTILIZING THE SAME - A lens and a lighting fixture utilizing the same provides a plurality of LED light sources as a single light source with a simple configuration. The lens is used with a plurality of light sources in combination and can have a single focus. The lens can include a plurality of light incident portions each disposed so as to face each of the plurality of light sources, the plurality of light incident portions collimating light beams emitted from the plurality of light sources in parallel with a predetermined optical axis while guiding the light beams inside the lens. A light exiting portion can include a refracting surface disposed on optical paths of the collimated light beams guided from the plurality of the light incident portions into the inside of the lens, with the light exiting portions causing the collimated light beams to exit and be converged on the single focus. A lighting fixture can utilize the lens described herein.05-26-2011

Patent applications by Hidetaka Okada, Tokyo JP