Hiroshi Ryonai

Person

Osaka, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Touch panel
- Patent number 8,946,579
- Issue date Feb 3, 2015
- PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
- Hiroshi Ryonai
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Master information carrier, method for producing the carrier, metho...
- Patent number 6,961,196
- Issue date Nov 1, 2005
- Matsushita Electric Industrial Co., Ltd.
- Tatsuaki Ishida
- G11 - INFORMATION STORAGE
Information Patent Grant
Master information support
- Patent number 6,858,328
- Issue date Feb 22, 2005
- Matsushita Electric Industrial Co., Ltd.
- Tatsuaki Ishida
- G11 - INFORMATION STORAGE
Information Patent Grant
Master information medium and method of master information recording
- Patent number 6,714,367
- Issue date Mar 30, 2004
- Matsushita Electric Industrial Co., Ltd.
- Tatsuaki Ishida
- G11 - INFORMATION STORAGE
Information Patent Grant
Master information magnetic recorder
- Patent number 6,611,388
- Issue date Aug 26, 2003
- Matsushita Electric Industrial Co., Ltd.
- Keizo Miyata
- G11 - INFORMATION STORAGE
Information Patent Grant
Master information carrier, method for producing the carrier, metho...
- Patent number 6,606,209
- Issue date Aug 12, 2003
- Matsushita Electric Industrial Co., Ltd.
- Tatsuaki Ishida
- G11 - INFORMATION STORAGE
Information Patent Grant
Master information carrier, method for producing the carrier, metho...
- Patent number 6,567,227
- Issue date May 20, 2003
- Matsushita Electric Industrial Co., Ltd.
- Tatsuaki Ishida
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic recording/reproduction device using preformat information
- Patent number 6,529,341
- Issue date Mar 4, 2003
- Matsushita Electric Industrial Co., Ltd.
- Tatsuaki Ishida
- G11 - INFORMATION STORAGE
Information Patent Grant
Master information carrier, process for producing the carrier, and...
- Patent number 6,347,016
- Issue date Feb 12, 2002
- Matsushita Electric Industrial Co., Ltd.
- Tatsuaki Ishida
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic recording medium and method for producing the same
- Patent number 6,242,085
- Issue date Jun 5, 2001
- Matsushita Electric Industrial Co., Ltd.
- Hiroshi Ryonai
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic head having chromium nitride protective film for use in ma...
- Patent number 5,636,092
- Issue date Jun 3, 1997
- Matsushita Electric Industrial Co., Ltd.
- Shogo Nasu
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Magnetic head having a chromium nitride protective film for use in...
- Patent number 5,475,552
- Issue date Dec 12, 1995
- Matsushita Electric Industrial Co., Ltd.
- Shogo Nasu
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...

Patents Applicationslast 30 patents

Information Patent Application
TOUCH PANEL
- Publication number 20130264179
- Publication date Oct 10, 2013
- PANASONIC CORPORATION
- HIROSHI RYONAI
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Method for producing optical element, optical element, and optical...
- Publication number 20060073626
- Publication date Apr 6, 2006
- Matsushita Electric Industrial Co., Ltd.
- Yoshiyuki Shimizu
- G02 - OPTICS
Information Patent Application
Master information carrier, method for producing the carrier, metho...
- Publication number 20030184896
- Publication date Oct 2, 2003
- Matsushita Electric Industrial Co., Ltd.
- Tatsuaki Ishida
- G11 - INFORMATION STORAGE
Information Patent Application
Master information carrier, process for producing the carrier, and...
- Publication number 20020101669
- Publication date Aug 1, 2002
- Matsushita Electric Industrial Co., Ltd.
- Tatsuaki Ishida
- G11 - INFORMATION STORAGE
Information Patent Application
Master information carrier, process for producing the carrier, and...
- Publication number 20020101670
- Publication date Aug 1, 2002
- Matsushita Electric Industrial Co., Ltd.
- Tatsuaki Ishida
- G11 - INFORMATION STORAGE
Information Patent Application
Master information carrier, process for producing the carrier, and...
- Publication number 20020089768
- Publication date Jul 11, 2002
- Matsushita Electric Industrial Co., Ltd.
- Tatsuaki Ishida
- G11 - INFORMATION STORAGE
Information Patent Application
Master information carrier, processfor producing the carrier, and m...
- Publication number 20020089769
- Publication date Jul 11, 2002
- Matsushita Electric Industrial Co., Ltd.
- Tatsuaki Ishida
- G11 - INFORMATION STORAGE
Information Patent Application
Master information carrier, method for producing the carrier, metho...
- Publication number 20020075583
- Publication date Jun 20, 2002
- Matsushita Electric Industrial Co., Ltd.
- Tatsuaki Ishida
- G11 - INFORMATION STORAGE

Hiroshi Ryonai

Person

Patents Grantslast 30 patents

Touch panel

Master information carrier, method for producing the carrier, metho...

Master information support

Master information medium and method of master information recording

Master information magnetic recorder

Master information carrier, method for producing the carrier, metho...

Master information carrier, method for producing the carrier, metho...

Magnetic recording/reproduction device using preformat information

Master information carrier, process for producing the carrier, and...

Magnetic recording medium and method for producing the same

Magnetic head having chromium nitride protective film for use in ma...

Magnetic head having a chromium nitride protective film for use in...

Patents Applicationslast 30 patents

TOUCH PANEL

Method for producing optical element, optical element, and optical...

Master information carrier, method for producing the carrier, metho...

Master information carrier, process for producing the carrier, and...

Master information carrier, process for producing the carrier, and...

Master information carrier, process for producing the carrier, and...

Master information carrier, processfor producing the carrier, and m...

Master information carrier, method for producing the carrier, metho...