Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Hoya Corporation Patents
Assignee:
Hoya Corporation
Address:
Tokyo, JP
No. of patents:
1458
Patents:












Patent Number Title Of Patent Date Issued
RE42717 Cam mechanism of a photographing lens September 20, 2011
A cam mechanism includes a cam ring, and a linearly movable frame movable supporting an optical element. The cam grooves are located at different positions in the optical axis direction and which trace a same reference cam diagram. All cam grooves are partial cam grooves each having at l
RE40610 Digital camera with moveable image pickup device December 23, 2008
A digital camera which includes: a photographic lens movable along an optical axis thereof between a retracted position and a photographing position in front of the retracted position; an image pick-up device on which an object image is formed through the photographic lens, the image
RE40609 Digital camera with moveable image pickup device December 23, 2008
A digital camera which includes: a photographic lens movable along an optical axis thereof between a retracted position and a photographing position in front of the retracted position; an image pick-up device on which an object image is formed through the photographic lens, the image
RE38617 Method of injection molding plastic lens October 12, 2004
A cavity 22 in an injection molding assembly includes a lower mold insert 21 for shaping a lens convex surface and an upper mold insert 20 for shaping a lens concave surface. When the heated injection molding assembly is cooled and a lens is ejected after a molten resin is pressurized by
RE37461 Spectacle lens holding structure December 4, 2001
A frame for rimless spectacles is provided which has no protuberances projecting from both surfaces of lenses, provides an improved effective field of view, and can be fabricated with ease. Blind holes are formed in nose- and temple-side edge surface portions of each spectacle lens,
RE37425 Spectacle lens holding structure October 30, 2001
A frame for rimless spectacles is provided which has no protuberances projecting from both surfaces of lenses, provides an improved effective field of view, and can be fabricated with ease. Blind holes are formed in nose- and temple-side edge surface portions of each spectacle lens,
RE34132 Progressive power ophthalmic lens November 24, 1992
An improved ophthalmic lens for presbyopia is disclosed in which the refractive power is progressively changed to provide a natural visual target arrangement. In the .[.opthalmic.]. .Iadd.ophthalmic .Iaddend.lens, rotation of the head of a wearer for binocular lateral vision is taken
D666716 Display screen for a control panel of an endoscope September 4, 2012
D643117 Processor for endoscope August 9, 2011
D641470 Endoscope July 12, 2011
D641082 Processor for endoscope July 5, 2011
D641081 Processor for endoscope July 5, 2011
D604348 Digital camera November 17, 2009
D602059 Binoculars October 13, 2009
D597580 Conversion lens August 4, 2009
D597116 Digital camera July 28, 2009
D593143 Digital camera May 26, 2009
D591781 Digital camera May 5, 2009
D590857 Binoculars April 21, 2009
D590856 Binoculars April 21, 2009
D568839 Photomask blank May 13, 2008
D543160 Photomask blank May 22, 2007
D537048 Photomask blank February 20, 2007
8588564 Confocal optical system November 19, 2013
A confocal optical system comprising a scanning fiber is provided. The scanning fiber is a single-mode fiber of which a first end is shaped as a curved surface. The scanning fiber transmits illumination light to the first end. The illumination light is emitted toward an observation area.
8580466 Optically semitransmissive film, photomask blank and photomask, and method for designing optical November 12, 2013
A photomask blank includes a transparent substrate and a film containing at lease two layers formed on the transparent substrate, the two layers being a first layer with a phase difference .DELTA..theta..sub.1 and a second layer with a phase difference .DELTA..theta..sub.2. The phase
8575049 Optical glass, glass molded body, optical device and their production methods November 5, 2013
An optical glass comprising, by mass %, 12 to 30% of total of B.sub.2O.sub.3 and SiO.sub.2, 55 to 80% of total of La.sub.2O.sub.3, Gd.sub.2O.sub.3, Y.sub.2O.sub.3, Yb.sub.2O.sub.3, ZrO.sub.2, Nb.sub.2O.sub.5 and WO.sub.3, 2 to 10% of ZrO.sub.2, 0 to 15% of Nb.sub.2O.sub.5, 0 to 15% o
8575048 Optical glass, precision press-molding preform, optical element and process for producing the sa November 5, 2013
[Problems to be Solved] To provide a high-refractivity low-dispersion optical glass that enables the stable production of high-quality optical elements. [Means to Solve the Problems] An optical glass comprising, as essential components, 20 to 50% of B.sup.3+, 5 to 35% of La.sup.3+, 1
8575047 Optical glass, preform for precision press molding, and optical element November 5, 2013
The present invention relates to an optical glass with a high refractive index and good precision press moldability, and a preform for precision press molding and an optical element that are comprised of the optical glass. The present invention further relates to a method of manufacturin
8574793 Mask blank, transfer mask, method of manufacturing a transfer mask, and method of manufacturing November 5, 2013
A mask blank for use in the manufacture of a transfer mask adapted to be applied with ArF excimer laser exposure light is disclosed. The mask blank has, on a transparent substrate, a light-shielding film for forming a transfer pattern. The light-shielding film has an at least two-layer
8574239 Intraocular lens insertion device November 5, 2013
An intraocular lens insertion device for inserting an intraocular lens capable of securely and safely pushing out the lens by a simple structure. An intraocular lens insertion device (1) comprises: a main body (3) having a lens placement portion (8) on which the lens (2) with a pair
8572854 Cutting tool November 5, 2013
A cutting tool includes: a plurality of shaft parts having blades at respective one ends and projections at the other ends; a shaft-receiving part having cylindrical parts fitting to portions of the shaft parts; a guide part having projection-receiving parts extending in one direction,
8570849 Tilt angle adjustment method for objective lens and optical information recording/reproducing ap October 29, 2013
A method for adjusting a tilt angle of an objective lens with respect to one of a multilayer optical disc having a plurality of recording layers and an optical axis of an optical information recording/reproducing apparatus, wherein a use wavelength .lamda. and a numerical aperture NA
8570668 Imaging optical system and imaging apparatus October 29, 2013
An imaging optical system, which includes an imaging lens group having at least one lens, and an image side prism that bends light which has passed through the imaging lens group toward an image pickup device arranged at a predetermined position, and wherein the image side prism includes
8567216 Manufacturing method of a sheet glass material for magnetic disk, manufacturing method of a glas October 29, 2013
A manufacturing method of a glass substrate for magnetic disk including a pair of principal surfaces is disclosed The method includes the steps of: dropping process for dropping a lump of molten glass; pressing process for forming a sheet glass material by sandwiching simultaneously the
8567044 Method of manufacturing a magnetic disk October 29, 2013
A defect inspection is performed for each of glass substrates by a surface defect detector. The distance from the center of the glass substrate to a detected defect, as a radius of a nonmagnetic region to be formed circular, is recorded along with an ID assigned to the glass substrat
8563077 Method of manufacturing a glass substrate for a magnetic disk and method of manufacturing a magn October 22, 2013
A method of manufacturing a magnetic disk glass substrate has a cleaning step of cleaning the glass substrate. In the cleaning step, the cleaning is performed under an acidic condition using a cleaning liquid containing oxalate ions and bivalent iron ions. In parallel with the cleaning s
8300321 Zoom lens system October 30, 2012
A zoom lens system includes a negative first lens group, a positive second lens group, and a positive third lens group. The second lens group includes a positive lens element, and two negative lens elements. The following conditions (1) and (2) are satisfied: 2.0<|VD1t-VD1w|/(ft/f
8298514 Agent for enhancing contrast of image of fluorescent staining of lumen of digestive tract October 30, 2012
The present invention provides an agent and a method for enhancing a contrast of an image of fluorescent staining of a lumen of the digestive tract with an intravenously administered fluorescent dye, wherein the agent for enhancing a contrast is an agent for a lumen of the digestive
8295961 Spectacle lens supply system, ordering system, and manufacturing method October 23, 2012
An ordering terminal (10) installed on an order side of a spectacle lens has a correction function concerning a measurement error measured by a spectacle frame shape measurement device (13), and transmits information necessary for machining the spectacle lens including the spectacle fram
8294995 Linear guide mechanism of lens barrel October 23, 2012
A linear guide mechanism of a lens barrel, the lens barrel including a rotatable ring, and a linearly movable member which holds an optical element and moves linearly in an optical axis direction by rotation of the rotatable ring, the linear guide mechanism includes a plurality of pa
8293435 Photomask blank, photomask, and methods of manufacturing the same October 23, 2012
A photomask blank is for manufacturing a phase shift mask having a light-transmitting substrate provided with a phase shift portion adapted to give a predetermined phase difference to transmitted exposure light. The phase shift portion is a dug-down part that is dug down from a surfa
8293330 Lens coating apparatus and lens coating method October 23, 2012
While one side of a lens L is held by a suction-holding member 17 and the suction-holding member 17 is moved by the moving mechanism, a coating process, a drying process, and a curing process are sequentially performed in respective receptacles disposed independently of each other. A
8293326 Spin-coating method, determination method for spin-coating condition and mask blank October 23, 2012
A spin-coating method according to the present invention includes a uniforming step of rotating a substrate at a predetermined main rotation speed for a predetermined main rotation time so as to primarily make a resist film thickness uniform, and a subsequent drying step of rotating
8289626 Rotationally extendable structure of lens barrel October 16, 2012
A rotationally extendable structure of a lens barrel includes a stationary ring; a rotational ring, supported by the stationary ring to move in an optical axis direction while rotating and includes a peripheral gear at the rear end thereof; and a rotational-ring drive gear. The rotat
8288299 Optical glass, preform for precision press molding, and optical element October 16, 2012
The present invention relates to an optical glass with a high refractive index and good precision press moldability, and a preform for precision press molding and an optical element that are comprised of the optical glass. The present invention further relates to a method of manufacturin
8285505 Lens evaluation method, lens evaluation device, lens manufacturing method, and lens characterist October 9, 2012
The present invention is to provide a lens evaluation method capable of easily evaluating whether there is a difference which greatly changes locally in a lens, and evaluating the degree of the difference. According to the lens evaluation method of the present invention, first, power a
8283092 Photomask blank, photomask, and photomask manufacturing method October 9, 2012
A photomask blank has a light-shielding film composed of at least two layers on a transparent substrate. The light-shielding film includes a light-shielding layer made of a material mainly containing tantalum nitride and containing less than 62 at % nitrogen. The material is capable
8279738 Objective lens and optical information recording/reproducing device having the same October 2, 2012
There is provided an objective lens for information recording/reproducing for three types of optical discs, which includes a first area contributing to converging a third light beam onto a record surface of a third optical disc. The first area includes a phase shift structure having
8277704 Method of manufacturing formed article, mold and method of manufacturing the same October 2, 2012
The present invention relates to a method of manufacturing a formed article forming an upper surface of a forming material comprised of a thermosoftening substance into a desired shape by positioning the forming material on a forming surface of a mold and heating the forming material
8274558 Electronic endoscope signal-processing device and electronic endoscope system September 25, 2012
An electronic endoscope system is provided that includes an RGB transformer, an R-signal amplifier, and a GB-signal amplifier. The RGB transformer transforms image signals to RGB signals. The R-signal amplifier changes the amplitude of the R signals of the RGB signals to a predetermi

 
 
  Recently Added Patents
Recording device, recording method, and program
Electronic flash device
System for and method of remotely auditing inventoried assets
Combination of the application of antibodies for immunostimulation together with glucocorticoids
Method for using directing cells for specific stem/progenitor cell activation and differentiation
Radio communication system, base station apparatus, terminal apparatus, and radio communication method for radio communication system
Pyrazole kinase modulators and methods of use
  Randomly Featured Patents
Transmission line composite beam suspension assembly
Inspection fixture for the solder side of printed circuit boards
Method of operating a heat-augmented heat pump system
Multi-band power amplifier module for wireless communications
System and method for automatically requiring secondary safety sensors
Oxygen chemical generation respiration apparatus
Systems and methods for instructing a printer to optimize a printed digital pattern
Gravity feed bottle
Alkenyldiarylmethane non-nucleoside HIV-1 reverse transcriptase inhibitors
Self-contained hydraulic system