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Patent No. 6368227

Method of swinging on a swing

A method of swing on a swing is disclosed, in which a user positioned on a standard swing suspended by two chains from a substantially horizontal tree branch induces side to side motion by pulling alternately on one chain and then the other.

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Inventor: Masahiro Yamada


Address: Kanagawa, JP
No. of patents: 30
Last patent issue date: 02/05/2013

NumberTitleIssue Date
8369018Spatial image display device
Provided is a spatial image display device capable of forming spatial images having a superior reality and high definition. A spatial image display device 10A is provided with: a display section 2 including a plurality of pixels 22, and generati...
02/05/2013
7874688Deformable mirror device, deformable mirror plate
A deformable mirror device compensates the spherical aberration caused by the difference of thickness of the cover layers covering recording layers of an optical disc. Circular projections are concentrically arranged on a flexible member (2) where a mirror su...
01/25/2011
7837341Deformable mirror device
A deformable mirror device includes a flexible member formed so as to be deformable and having a mirror surface formed on its front surface, and a pressure generating section configured so that a direction of generation of a pressure to be applied to the flexible me...
11/23/2010
7420892Optical head device, and optical recording/reproducing device
A compact and light flying head type magneto-optical head apparatus is provided. The magneto-optical head apparatus (1) of the present invention comprises a suspension (12) whose one end is fixed to a lower surface of an arm (11), a slider (1...
09/02/2008
7403464Lens and combination lens
A lens and combination lens able to suppress deviation of an optical axis of a lens occurring at the time of combination and able to be adjusted at a high precision, a method of producing the combination lens, and an optical pickup device and an optical disk drive m...
07/22/2008
7256950Optical device, optical system, method of production of same, and mold for production of same
A first optical device according to the present invention comprises a base made of a first optical material and a second optical material having a refractive index different from that of the first optical material, and the base has a concavity, and the second optica...
08/14/2007
7064906Optical pickup device with shielding to limit incident or emitted light
An optical pickup device and optical disc apparatus of the present invention include an optical element that prevents the incidence of light on unnecessary portions of the optical element so that stray light and noise are eliminated. The optical element include at l...
06/20/2006
6992842Optical device, optical system, method of production of same, and mold for production of same
A first optical device according to the present invention comprises a base made of a first optical material and a second optical material having a refractive index different from that of the first optical material, and the base has a concavity, and the second optica...
01/31/2006
6985310Optical device, optical system, method of production of same, and mold for production of same
A first optical device according to the present invention comprises a base made of a first optical material and a second optical material having a refractive index different from that of the first optical material, and the base has a concavity, and the second optica...
01/10/2006
6972912Optical device, optical system, method of production of same, and mold for production of same
A first optical device according to the present invention comprises a base made of a first optical material and a second optical material having a refractive index different from that of the first optical material, and the base has a concavity, and the second optica...
12/06/2005
6966707Optical pickup
An optical pickup using an optical fiber module which includes optical fibers is provided, which can be small-sized and utilize a light beam from a light source at high efficiency. The optical pickup includes: an optical fiber module 20, in which an op...
11/22/2005
6898027Optical element and manufacturing method for same
An optical element and manufacturing method of the present invention prevent the incidence of light on unnecessary portions of the optical element so that stray light and noise are eliminated. The optical element is configured from at least one substrate having a pl...
05/24/2005
6896419Optical pickup
An optical pickup using an optical fiber module which includes optical fibers is provided, which can be small-sized and utilize a light beam from a light source at high efficiency. The optical pickup includes: an optical fiber module 20, in which an optical f...
05/24/2005
6839188Optical element and optical pickup
The system and methods of the present invention are directed to an optical pickup. The optical includes at least a light source, a lens for focusing and irradiating light from the light source on a recording medium, and an optical pickup element. The optical pickup ...
01/04/2005
6827770Metal chelated dyestuff for inkjet recording, aqueous inkjet recording liquid comprising same and inkjet recording method using same
A metal chelated dyestuff for inkjet recording comprising a water soluble azo metal chelated compound formed by an azo-based compound represented by the following general formula (1) having one or more hydrophilic group per molecule and a metal element; an aqueous i...
12/07/2004
6825995Optical device, optical system, method of production of same, and mold for production of same
A first optical device according to the present invention comprises a base made of a first optical material and a second optical material having a refractive index different from that of the first optical material, and the base has a concavity, and the second optica...
11/30/2004
6755903Metal chelated dyestuff for inkjet recording and aqueous inkjet recording liquid using the same
A metal chelated dyestuff for inkjet recording is described, which is a water soluble azo metal chelated compound formed from an azo compound represented by the following general formula (1) and a metal element and is good at the clearness of color tone, light resis...
06/29/2004
6717738Optical element, metal mold for producing optical element and production method for optical element
An approximately rectangular parallelopiped shaped optical element 100 has a substrate (base) 101, a lens 102, and an axially symmetric convex portion 103D formed in an upper surface 100U of the substrate 101. The radius of ...
04/06/2004
6560391Optical switch and optical disk drive
Disclosed herein is an optical switch including: a dielectric substrate having a pair of main surfaces opposed to each other; and a pair of electrodes formed on the main surfaces of the dielectric substrate; wherein a direction of emergence of a light bea...
05/06/2003
6473542Optical switch and optical disk drive
Disclosed herein is an optical switch including: a dielectric substrate having a pair of main surfaces opposed to each other; and a pair of electrodes formed on the main surfaces of the dielectric substrate; wherein a direction of emergence of a light bea...
10/29/2002
6411420Electro-optical element, and method of driving and method of manufacturing the same
Polarization inversion domains 2 are irregularly formed in a ferroelectric substrate 3 constituting an electro-optical element 1 at least in the propagation direction of a light beam A. An A.C. current signal is applied between electrodes 4 and 5. It is t...
06/25/2002
5996790Watertight equipment cover
A watertight equipment cover for outdoor or marine use that includes an interior and exterior surface, with the interior surface configured to fit substantially adjacent to and to completely enclose a piece of equipment such as photographic equipment or p...
12/07/1999
5993525Recording liquid
A recording liquid is disclosed comprising an aqueous medium and at least one dye selected from the dyes of which free acid form is represented by the following formula (I): ##STR1##...
11/30/1999
5894363Electro-optical element
An electro-optical element such as a light deflection element which allows high speed random accessing and can provide a large deflection angle and wherein a plurality of of functions can be integrated stably with a high degree of accuracy in a single ele...
04/13/1999
5786926Electro-optical device having inverted domains formed inside a ferro-electric substrate and electro-optical unit utilizing thereof
An electro-optical device such as an optical deflector comprising a ferro-electric substrate, electrodes provided on principal surfaces of this substrate and an inverted domain having a polygonal, e.g. triangular shape formed in the substrate, at least on...
07/28/1998
5609673Recording liquid
A recording liquid comprising an aqueous medium and at least one dye selected from dyes, the free acid forms of which are represented by formula (I): ##STR1## All the symbols in formula (I) are defined in the description....
03/11/1997
5588732Video lighting apparatus and electrode apparatus therefor
A lighting apparatus is comprised of an illumination unit arranged so as to project from a light apparatus body by a predetermined distance, a spring for spring-biasing the illumination unit in the direction in which the illumination unit is projected fro...
12/31/1996
5526173Method of local domain control on nonlinear optical materials
A plurality of first electrodes are disposed on one of opposite surfaces of a nonlinear optical material substrate which is divided into single domains. Each of the first electrodes is made of an electric conductor having a width which is equal to or smal...
06/11/1996
5480478Recording liquid
A recording liquid comprising an aqueous medium and at least one dye selected from dyes, a free acid form of which is represented by formula (I), (II), (III) or (VI), the symbols in the formulae being defined in the specification: ##STR1##...
01/02/1996
5249250Optical device having domain structure and method for manufacturing the same
An optical device having a periodic inverted domain construction is used for second harmonic generating devices or the like. The optical device comprises a ferroelectric crystal substrate which is provided in this surface with a periodic inverted domain s...
09/28/1993
 
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