Western Digital Technologies Assigned Two Patents

Tape head design having same gap verify capabilities
Western Digital Technologies, Inc., San Jose, CA, has been assigned a patent (11646053) developed by Seagle, David J., Goncharov, Alexander, Morgan Hill, CA, and Biskeborn, Robert G., Hollister, CA, for a “tape head design having same gap verify capabilities.“

The abstract of the patent published by the U.S. Patent and Trademark Office states: “The present disclosure generally relates to a tape drive including a tape head. The tape head comprises at least one same gap verify (SGV) module comprising a plurality of write transducer and read transducer pairs disposed on a substrate. In each pair, the write transducer comprises a write pole having a height, and the read transducer comprises a first shield disposed adjacent to the write pole. The write pole and the first shield of each pair are spaced apart a distance greater than or equal to about 20% of the height of the write pole. The SGV module is configured to write data to a tape using the write transducer of each pair and read verify the data written on the tape using the read transducer of each pair such that the write transducer and read transducer of each pair are concurrently operable.”

The patent application was filed on 2021-06-23 (17/355590).

Tape head design having an antiferromagnetic coupling (AFC) null shield for same gap verify
Western Digital Technologies, Inc., San Jose, CA, has been assigned a patent (11646054) developed by Le, Quang, Liu, Xiaoyong, San Jose, CA, Ho, Kuok San, Emerald Hills, CA, and Takano, Hisashi, San Jose, CA, for a “tape head design having an antiferromagnetic coupling (AFC) null shield for same gap verify.“

The abstract of the patent published by the U.S. Patent and Trademark Office states: “The present disclosure generally relates to a tape drive including a tape head. The tape head comprises at least one same gap verify (SGV) module comprising a plurality of write transducer and read transducer pairs disposed on a substrate. Each pair comprises a null shield disposed between the write transducer and the read transducer. The null shield is used to create a null region, or a region where write flux goes to zero, and comprises laminated antiferromagnetic coupling materials to protect writer flux from going to the read transducer. The read transducer is disposed in the null region. The SGV module is configured to write data to a tape using the write transducer of each pair and read verify the data written on the tape using the read transducer of each pair such that the write transducer and read transducer of each pair are concurrently operable.”

The patent application was filed on 2021-08-06 (17/396213).