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Ikenaka, JP
Kiyono Ikenaka, Tokyo JP
| Patent application number | Description | Published |
|---|---|---|
| 20080259767 | Objective optical element and optical pickup apparatus - An objective optical element of an optical pickup apparatus has a magnification m | 10-23-2008 |
| 20090147657 | Optical pickup device and objective lens used in the same - An optical system has an optical functional surface including a common region used for conducting information recording and/or reproducing for both of a first optical information recording medium and a second optical information recording medium. The common region comprises a refractive surface of an imaginary basic aspherical surface and a optical path difference providing structure in which plural ring-shapes zones are separated around the center of an optical axis and neighboring ring-shaped zones are displaced to each other in a direction of an optical axis so as to cause an optical path difference obtained by multiplying a predetermined wavelength λs (λ | 06-11-2009 |
| 20090196147 | Optical pickup apparatus - An optical pickup apparatus for information recording and/or reproduction on different optical information recording media with compatibility among these media, the optical surface of a first objective lens and the optical surface of a second objective lens are formed only of a refractive surface. The second objective lens is used in common for the first light flux with a wavelength of λ | 08-06-2009 |
| 20090196149 | Optical pickup apparatus - In order to provide an optical pickup apparatus that has a relatively simple configuration and that can carry out recording and/or reproduction of information in a s compatible manner for different optical information storage medium, the optical surface of the first objective lens OBJ | 08-06-2009 |
| 20090290474 | OPTICAL PICKUP APPARATUS AND OBJECTIVE OPTICAL ELEMENT - A light flux from the first light source forms a converged spot on first optical information recording medium by only a refraction action of the aspheric surface, or by a combination of the refraction action and an optical action given by at least one of the first phase structure and the second phase structure, a light flux from the second light source forms a converged spot on second optical recording medium by a combination of a refraction action of the aspheric surface and an optical action given by at least one of the first phase structure and the second phase structure, and a light flux from the third light source forms a converged spot on third optical recording medium by a combination of a refraction action of the aspheric surface and an optical action given by at least one of the first phase structure and the second phase structure. | 11-26-2009 |
Yasuhiro Ikenaka, Kobe-Shi JP
| Patent application number | Description | Published |
|---|---|---|
| 20100234385 | Compsition Containing Biopterin and Method for Using The Same - It is thought that applications and use of tetrahydrobiopterin (BH4), which is used as a pharmaceutical, will expand due to its superior efficacy. However, in addition to BH4 being extremely expensive, since it is unstable with respect to oxidation, applications other than pharmaceuticals are considered to be difficult. Further, it is difficult for BH4 to permeate through a blood-brain barrier, so that BH4 concentrations in the brain tend not to increase under the present conditions. Biopterins are oxidized form of BH4, stable to oxidation, easy to handle, and can be produced inexpensively. The inventors found that administration of biopterin can be expected to demonstrate effects equal to or greater than those of administration of BH4. On the basis of the result, it was first clarified that administration of a composition containing biopterin causes increase in BH4 concentration in the body (especially BH4 concentration in the brain, which is difficult to be increased by BH4 administration) to demonstrate sufficient actions. | 09-16-2010 |
Yasuhiro Ikenaka, Hyogo JP
| Patent application number | Description | Published |
|---|---|---|
| 20090104668 | Method for Producing Biopterins Using Tetrahydrobiopterin Biosynthesis Enzyme - Biopterins are useful compounds utilized in pharmaceutical agents or functional foods. The presence of sepiapterin reductase (SPR) involved in the biosynthesis of biopterins has not been confirmed so far in microorganisms except for a few microorganisms such as blue-green algae. For efficiently producing biopterins using microorganisms, it has been demanded to obtain and use SPR genes derived from microorganisms. The present inventors have found that when | 04-23-2009 |
Yoshiharu Ikenaka, Osaka JP
| Patent application number | Description | Published |
|---|---|---|
| 20100236720 | APPARATUS FOR MELT-ADHERING RESIN PIPES - An apparatus ( | 09-23-2010 |