Yoshio Yoshida

Person

Tenri, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Optical pickup having optical waveguide device fixed on stem with w...
- Patent number 6,254,284
- Issue date Jul 3, 2001
- Sharp Kabushiki Kaisha
- Akihito Yoshimoto
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical pickup integrated with optical system
- Patent number 6,201,228
- Issue date Mar 13, 2001
- Sharp Kabushiki Kaisha
- Yoshio Yoshida
- G11 - INFORMATION STORAGE
Information Patent Grant
Polarization detection device and method for producing the same
- Patent number 6,166,372
- Issue date Dec 26, 2000
- Sharp Kabushiki Kaisha
- Hiroyuki Yamamoto
- G02 - OPTICS
Information Patent Grant
Waveguide-photodetector, method for producing the same, waveguide u...
- Patent number 6,078,707
- Issue date Jun 20, 2000
- Sharp Kabushiki Kaisha
- Hiroyuki Yamamoto
- G02 - OPTICS
Information Patent Grant
Method for producing tapered waveguide
- Patent number 6,030,540
- Issue date Feb 29, 2000
- Sharp Kabushiki Kaisha
- Hiroyuki Yamamoto
- G02 - OPTICS
Information Patent Grant
Method for producing a photocoupler and a photocoupler produced by...
- Patent number 5,946,433
- Issue date Aug 31, 1999
- Sharp Kabushiki Kaisha
- Hiroyuki Yamamoto
- G02 - OPTICS
Information Patent Grant
Compact optical pickup device with beam splitter
- Patent number 5,726,962
- Issue date Mar 10, 1998
- Sharp Kabushiki Kaisha
- Kuniaki Okada
- G11 - INFORMATION STORAGE
Information Patent Grant
Magneto-optical disk pick-up device having mode splitter using cut...
- Patent number 5,652,737
- Issue date Jul 29, 1997
- Sharp Kabushiki Saisha
- Kohji Minami
- G02 - OPTICS
Information Patent Grant
Optical coupler and method for producing the same
- Patent number 5,652,816
- Issue date Jul 29, 1997
- Sharp Kabushiki Kaisha
- Kohji Minami
- G02 - OPTICS
Information Patent Grant
Method for producing a tapered waveguide
- Patent number 5,576,149
- Issue date Nov 19, 1996
- Sharp Kabushiki Kaisha
- Hiroyuki Yamamoto
- G02 - OPTICS
Information Patent Grant
Optical pickup device with diffraction device
- Patent number RE35332
- Issue date Sep 24, 1996
- Sharp Kabushiki Kaisha
- Toshiya Nagahama
- 250 - Radiant energy
Information Patent Grant
Optical pickup
- Patent number 5,515,354
- Issue date May 7, 1996
- Sharp Kabushiki Kaisha
- Takahiro Miyake
- G11 - INFORMATION STORAGE
Information Patent Grant
Mode splitter and a magneto-optical disk pick-up device having the...
- Patent number 5,509,094
- Issue date Apr 16, 1996
- Sharp Kabushiki Kaisha
- Kohji Minami
- G02 - OPTICS
Information Patent Grant
Polarization detector
- Patent number 5,473,470
- Issue date Dec 5, 1995
- Sharp Kabushiki Kaisha
- Takahiro Miyake
- G02 - OPTICS
Information Patent Grant
Display apparatus having a plurality of display devices
- Patent number 5,465,315
- Issue date Nov 7, 1995
- Sharp Kabushiki Kaisha
- Keiji Sakai
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Grant
Optical information reproducing apparatus
- Patent number 5,446,719
- Issue date Aug 29, 1995
- Sharp Kabushiki Kaisha
- Yoshio Yoshida
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical pick-up device having an optical diffraction grating element
- Patent number 5,440,427
- Issue date Aug 8, 1995
- Sharp Kabushiki Kaisha
- Takahiro Miyake
- G02 - OPTICS
Information Patent Grant
Pickup device for a magneto-optical information recording system
- Patent number 5,428,584
- Issue date Jun 27, 1995
- Sharp Kabushiki Kaisha
- Yoshio Yoshida
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical information recording and reproducing device
- Patent number 5,428,595
- Issue date Jun 27, 1995
- Sharp Kabushiki Kaisha
- Yoshio Yoshida
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical scan device having an optical diffraction grating element
- Patent number 5,428,472
- Issue date Jun 27, 1995
- Sharp Kabushiki Kaisha
- Takahiro Miyake
- G02 - OPTICS
Information Patent Grant
Optical integrated circuit having light detector
- Patent number 5,410,622
- Issue date Apr 25, 1995
- Sharp Kabushiki Kaisha
- Kuniaki Okada
- G02 - OPTICS
Information Patent Grant
Optical device having two optical waveguides connected and a method...
- Patent number 5,410,623
- Issue date Apr 25, 1995
- Sharp Kabushiki Kaisha
- Kouji Minami
- G02 - OPTICS
Information Patent Grant
Optical pickup apparatus
- Patent number 5,410,529
- Issue date Apr 25, 1995
- Sharp Kabushiki Kaisha
- Yukio Kurata
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical pickup apparatus
- Patent number 5,408,450
- Issue date Apr 18, 1995
- Sharp Kabushiki Kaisha
- Toshiya Nagahama
- G11 - INFORMATION STORAGE
Information Patent Grant
Three-dimensional image display apparatus for optically synthesizin...
- Patent number 5,408,264
- Issue date Apr 18, 1995
- Sharp Kabushiki Kaisha
- Yukio Kurata
- G02 - OPTICS
Information Patent Grant
Optical pickup apparatus and a hologram element used for same
- Patent number 5,331,621
- Issue date Jul 19, 1994
- Sharp Kabushiki Kaisha
- Takahiro Miyake
- G02 - OPTICS
Information Patent Grant
Optical head
- Patent number 5,283,772
- Issue date Feb 1, 1994
- Sharp Kabushiki Kaisha
- Takahiro Miyake
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical diffraction grating element
- Patent number 5,283,690
- Issue date Feb 1, 1994
- Sharp Kabushiki Kaisha
- Takahiro Miyake
- G02 - OPTICS
Information Patent Grant
Manufacturing method of optical diffraction grating element with se...
- Patent number 5,279,924
- Issue date Jan 18, 1994
- Sharp Kabushiki Kaisha
- Keiji Sakai
- G02 - OPTICS
Information Patent Grant
Polarization diffraction element and polarization detector employin...
- Patent number 5,257,131
- Issue date Oct 26, 1993
- Sharp Kabushiki Kaisha
- Yoshio Yoshida
- G02 - OPTICS

Yoshio Yoshida

Person

Patents Grantslast 30 patents

Optical pickup having optical waveguide device fixed on stem with w...

Optical pickup integrated with optical system

Polarization detection device and method for producing the same

Waveguide-photodetector, method for producing the same, waveguide u...

Method for producing tapered waveguide

Method for producing a photocoupler and a photocoupler produced by...

Compact optical pickup device with beam splitter

Magneto-optical disk pick-up device having mode splitter using cut...

Optical coupler and method for producing the same

Method for producing a tapered waveguide

Optical pickup device with diffraction device

Optical pickup

Mode splitter and a magneto-optical disk pick-up device having the...

Polarization detector

Display apparatus having a plurality of display devices

Optical information reproducing apparatus

Optical pick-up device having an optical diffraction grating element

Pickup device for a magneto-optical information recording system

Optical information recording and reproducing device

Optical scan device having an optical diffraction grating element

Optical integrated circuit having light detector

Optical device having two optical waveguides connected and a method...

Optical pickup apparatus

Optical pickup apparatus

Three-dimensional image display apparatus for optically synthesizin...

Optical pickup apparatus and a hologram element used for same

Optical head

Optical diffraction grating element

Manufacturing method of optical diffraction grating element with se...

Polarization diffraction element and polarization detector employin...