Yuji Iwahashi

Person

Miyagi, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Tape reel and tape cartridge
- Patent number 12,068,005
- Issue date Aug 20, 2024
- Sony Group Corporation
- Hiroshi Kumagai
- G11 - INFORMATION STORAGE
Information Patent Grant
Tape cartridge with reel lock release member having gradually decre...
- Patent number 11,282,542
- Issue date Mar 22, 2022
- Sony Corporation
- Yuji Iwahashi
- G11 - INFORMATION STORAGE
Information Patent Grant
Tape cartridge including reel lock member
- Patent number 11,217,278
- Issue date Jan 4, 2022
- Sony Corporation
- Yuji Iwahashi
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Magnetic tape cartridge
- Patent number 9,704,530
- Issue date Jul 11, 2017
- Sony Corporation
- Hiroshi Kumagai
- G11 - INFORMATION STORAGE
Information Patent Grant
Tape cassette with slidably guided, spring-biased reel locking means
- Patent number 5,506,739
- Issue date Apr 9, 1996
- Sony Corporation
- Yuji Iwahashi
- G11 - INFORMATION STORAGE
Information Patent Grant
Lid assembly for a tape cassette which protects front and rear surf...
- Patent number 5,422,773
- Issue date Jun 6, 1995
- Sony Corporation
- Hiroshi Ozaki
- G11 - INFORMATION STORAGE
Information Patent Grant
Tape cassette having an improved lid/sub lid structure
- Patent number 5,407,145
- Issue date Apr 18, 1995
- Sony Corporation
- Yuji Iwahashi
- G11 - INFORMATION STORAGE
Information Patent Grant
Tape cassette case made by a dichromatic manner
- Patent number 5,405,007
- Issue date Apr 11, 1995
- Sony Corporation
- Yuji Iwahashi
- G11 - INFORMATION STORAGE
Information Patent Grant
Brake device for tape reel in magnetic tape cassette
- Patent number 5,255,144
- Issue date Oct 19, 1993
- Sony Corporation
- Yuji Iwahashi
- G11 - INFORMATION STORAGE
Information Patent Grant
Tape cassette reel having an upper reel portion formed by dichromat...
- Patent number 5,174,520
- Issue date Dec 29, 1992
- Sony Corporation
- Yuji Iwahashi
- G11 - INFORMATION STORAGE
Information Patent Grant
Tape cassette with lid assembly which, in a closed position, protec...
- Patent number 5,170,962
- Issue date Dec 15, 1992
- Sony Corporation
- Yuji Iwahashi
- G11 - INFORMATION STORAGE
Information Patent Grant
Tape cassette with sealed light aperture
- Patent number 5,075,810
- Issue date Dec 24, 1991
- Sony Corporation
- Yuji Iwahashi
- G11 - INFORMATION STORAGE
Information Patent Grant
Tape cassette reel having an upper reel molded by dichromatic moldi...
- Patent number 5,007,596
- Issue date Apr 16, 1991
- Sony Corporation
- Yuji Iwahashi
- G11 - INFORMATION STORAGE
Information Patent Grant
Tape cassette with transparent reel viewing windows and laminated t...
- Patent number 4,945,440
- Issue date Jul 31, 1990
- Sony Corporation
- Yuji Iwahashi
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Tape cassette having means for locking reels thereof
- Patent number 4,903,915
- Issue date Feb 27, 1990
- Sony Corporation
- Yuji Iwahashi
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical tape end sensing arrangement for magnetic tape cassette
- Patent number 4,901,171
- Issue date Feb 13, 1990
- Sony Corporation
- Kiyoshi Urayama
- G11 - INFORMATION STORAGE
Information Patent Grant
Tape cassette having a front lid and a back lid
- Patent number 4,893,766
- Issue date Jan 16, 1990
- Sony Corporation
- Shuichi Yamashina
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Tape reel for tape cassette
- Patent number 4,807,826
- Issue date Feb 28, 1989
- Sony Corporation
- Yuji Iwahashi
- G11 - INFORMATION STORAGE
Information Patent Grant
Tape cassette
- Patent number 4,773,614
- Issue date Sep 27, 1988
- Sony Corporation
- Masahiro Makino
- G11 - INFORMATION STORAGE

Patents Applicationslast 30 patents

Information Patent Application
CARTRIDGE
- Publication number 20240170019
- Publication date May 23, 2024
- SONY GROUP CORPORATION
- Minoru YAMAGA
- G11 - INFORMATION STORAGE
Information Patent Application
TAPE CARTRIDGE, METHOD OF PRODUCING TAPE CARTRIDGE, AND TAPE REEL
- Publication number 20240170020
- Publication date May 23, 2024
- SONY GROUP CORPORATION
- Yuji IWAHASHI
- G11 - INFORMATION STORAGE
Information Patent Application
TAPE CARTRIDGE, TAPE REEL, AND METHOD OF PRODUCING REEL HUB
- Publication number 20230249941
- Publication date Aug 10, 2023
- SONY GROUP CORPORATION
- Hiroshi KUMAGAI
- G11 - INFORMATION STORAGE
Information Patent Application
TAPE REEL AND TAPE CARTRIDGE
- Publication number 20220172743
- Publication date Jun 2, 2022
- SONY GROUP CORPORATION
- Hiroshi KUMAGAI
- G11 - INFORMATION STORAGE
Information Patent Application
TAPE CARTRIDGE
- Publication number 20210312947
- Publication date Oct 7, 2021
- SONY CORPORATION
- Yuji IWAHASHI
- G11 - INFORMATION STORAGE
Information Patent Application
TAPE CARTRIDGE
- Publication number 20210264945
- Publication date Aug 26, 2021
- SONY CORPORATION
- Yuji IWAHASHI
- G11 - INFORMATION STORAGE
Information Patent Application
MAGNETIC TAPE CARTRIDGE
- Publication number 20150269965
- Publication date Sep 24, 2015
- SONY CORPORATION
- Hiroshi KUMAGAI
- G11 - INFORMATION STORAGE

Yuji Iwahashi

Person

Patents Grantslast 30 patents

Tape reel and tape cartridge

Tape cartridge with reel lock release member having gradually decre...

Tape cartridge including reel lock member

Magnetic tape cartridge

Tape cassette with slidably guided, spring-biased reel locking means

Lid assembly for a tape cassette which protects front and rear surf...

Tape cassette having an improved lid/sub lid structure

Tape cassette case made by a dichromatic manner

Brake device for tape reel in magnetic tape cassette

Tape cassette reel having an upper reel portion formed by dichromat...

Tape cassette with lid assembly which, in a closed position, protec...

Tape cassette with sealed light aperture

Tape cassette reel having an upper reel molded by dichromatic moldi...

Tape cassette with transparent reel viewing windows and laminated t...

Tape cassette having means for locking reels thereof

Optical tape end sensing arrangement for magnetic tape cassette

Tape cassette having a front lid and a back lid

Tape reel for tape cassette

Tape cassette

Patents Applicationslast 30 patents

CARTRIDGE

TAPE CARTRIDGE, METHOD OF PRODUCING TAPE CARTRIDGE, AND TAPE REEL

TAPE CARTRIDGE, TAPE REEL, AND METHOD OF PRODUCING REEL HUB

TAPE REEL AND TAPE CARTRIDGE

TAPE CARTRIDGE

TAPE CARTRIDGE

MAGNETIC TAPE CARTRIDGE