Toshio Ishikawa

Person

Nara, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Method for machining/cleaning by hydroxide ion in ultrapure water
- Patent number 6,652,658
- Issue date Nov 25, 2003
- Japan Science and Technology Corporation
- Yuzo Mori
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Method of performing high-efficiency machining by high-density radi...
- Patent number 5,935,460
- Issue date Aug 10, 1999
- Japan Science and Technology Corporation
- Yuzo Mori
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Method for recording and reproducing information using an optical m...
- Patent number 5,438,561
- Issue date Aug 1, 1995
- Sharp Kabushiki Kaisha
- Kazuo Van
- G11 - INFORMATION STORAGE
Information Patent Grant
Disk recording and reproducing device
- Patent number 5,420,838
- Issue date May 30, 1995
- Sharp Kabushiki Kaisha
- Shigemi Maeda
- 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
Magneto-optical recording and reproducing device having integrally...
- Patent number 5,325,344
- Issue date Jun 28, 1994
- Sharp Kabushiki Kaisha
- Kenji Ohta
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic recording and reproduction apparatus for data processing u...
- Patent number 5,293,280
- Issue date Mar 8, 1994
- Sharp Kabushiki Kaisha
- Toshio Ishikawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Liquid crystal display apparatus
- Patent number 5,251,280
- Issue date Oct 5, 1993
- Sharp Kabushiki Kaisha
- Atsushi Asada
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Grant
Optical recording element having a plurality of thin film filtering...
- Patent number 5,214,636
- Issue date May 25, 1993
- Sharp Kabushiki Kaisha
- Toshio Ishikawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Magneto-optical recording and reproducing device having integrally...
- Patent number 5,202,862
- Issue date Apr 13, 1993
- Sharp Kabushiki Kaisha
- Kenji Ohta
- G11 - INFORMATION STORAGE
Information Patent Grant
Magneto-optical multilayer recording disk and method of reproducing...
- Patent number 5,187,703
- Issue date Feb 16, 1993
- Sharp Kabushiki Kaisha
- Hiroyuki Katayama
- G11 - INFORMATION STORAGE
Information Patent Grant
Portable image input device
- Patent number 4,947,261
- Issue date Aug 7, 1990
- Sharp Kabushiki Kaisha
- Toshio Ishikawa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Toshio Ishikawa

Person

Patents Grantslast 30 patents

Method for machining/cleaning by hydroxide ion in ultrapure water

Method of performing high-efficiency machining by high-density radi...

Method for recording and reproducing information using an optical m...

Disk recording and reproducing device

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

Magneto-optical recording and reproducing device having integrally...

Magnetic recording and reproduction apparatus for data processing u...

Liquid crystal display apparatus

Optical recording element having a plurality of thin film filtering...

Magneto-optical recording and reproducing device having integrally...

Magneto-optical multilayer recording disk and method of reproducing...

Portable image input device