Question: who made a fully autonomous unmanned mini watercraft capable of independent operation underwater that differs from a submersible, which has more limited underwater capability?

Context articles: Talisman UUV
List of unmanned aerial vehicles of China
Submersible
DARPA Grand Challenge
Peral Submarine
Submarine
Autonomous Navigation System
Long-Term Mine Reconnaissance System
Autonomous underwater vehicle
Unmanned underwater vehicle

The Talisman UUV is a fully autonomous unmanned mini-sub designed and made by BAE Systems.
 It has the capability to perform shoreline reconnaissance when the risks may be deemed too high, or conditions unsuitable, for human operators.
This is a list of unmanned aerial vehicles (UAVs, or 'drones'), of China.
 There are further categories and sub-categories following the main, comprehensive list, and some of the UAVs appear in more than one category/ sub-category when they can be classified by more than one.
 As late of 2010, there are more than a hundred UAV developers/manufacturers currently in China.
 By 2014, that number is increased to over two hundred thirty UAV developers / manufacturers in China, with over two third of them are private enterprises (PE), and the remaining are government owned enterprises (GOE).
 Most of the GOEs are fully capable of indigenously completing the entire development of UAVs of various sizes, from the initial design at the very beginning, all the way to the final completion of UAVs of various sizes, ranging from the smallest micro air vehicle (MAV)s to the largest UAVs.
 In contrast, most PEs lack such capability because they are assemblers purchasing existing commercial off-the-shelf (COTS) subsystems such as airframes, flight control systems (FCS) and propulsion systems and integrating these subsystems together into final products of their own.
 Compounded with transparency and language hurdles, this often creates confusion among observers and analysts outside Chinese because the same UAV appears to be shown by different firms, while in reality, the only thing common is the COTS airframe chosen by different firms, which choose different COTS for other subsystems when assembling UAV of their own.
 For those PEs do have the full capability to indigenously completing the entire development of UAVs, their products are often limited to unmanned blimp/airships, unmanned helicopters/multirotors and micro air vehicle (MAV)s, which consist of the majority of Chinese UAVs.
 The Chinese UAV market is projected to be ¥ 10 billion in 2015, and within next two decades, it is expected to increase to ¥ 46 billion.
 As the end of 2013, there are over fifteen thousand UAVs operating in China in the civilian sector alone.
A submersible is a small vehicle designed to operate underwater.
 The term "submersible" is often used to differentiate from other underwater vehicles known as submarines, in that a submarine is a fully autonomous craft, capable of renewing its own power and breathing air, whereas a submersible is usually supported by a surface vessel, platform, shore team or sometimes a larger submarine.
 In common usage by the general public, however, the word "submarine" may be used to describe a craft that is by the technical definition actually a submersible.
 There are many types of submersibles, including both crewed and uncrewed craft, otherwise known as remotely operated vehicles or ROVs.
 Submersibles have many uses worldwide, such as oceanography, underwater archaeology, ocean exploration, adventure, equipment maintenance and recovery, and underwater videography.
The DARPA Grand Challenge is a prize competition for American autonomous vehicles, funded by the Defense Advanced Research Projects Agency, the most prominent research organization of the United States Department of Defense.
 Congress has authorized DARPA to award cash prizes to further DARPA's mission to sponsor revolutionary, high-payoff research that bridges the gap between fundamental discoveries and military use.
 The initial DARPA Grand Challenge was created to spur the development of technologies needed to create the first fully autonomous ground vehicles capable of completing a substantial off-road course within a limited time.
 The third event, the DARPA Urban Challenge extended the initial Challenge to autonomous operation in a mock urban environment.
 The most recent Challenge, the 2012 DARPA Robotics Challenge, focused on autonomous emergency-maintenance robots.
Peral was the first electric battery-powered submarine, built by the Spanish engineer and sailor Isaac Peral for the Spanish Navy.
 The first fully capable military submarine, she was launched 8 September 1888.
 She had one torpedo tube (and two torpedoes) and an air regeneration system.
 Her hull shape, propeller, and cruciform external controls anticipated later designs.
 Her underwater speed was 3 kn .
 With fully charged batteries, she was the fastest submarine yet built, with underwater performance levels (except for range) that matched those of First World War U-boats for a very short period, before her batteries began to drain.
 For example, the SM U-9, a pre-war German U-boat built in 1908, had an underwater speed of 8.1kn, and an underwater range of 150 km at 5.8kn, before having to resurface to recharge her batteries.
 In June 1890, Peral's submarine launched a torpedo while submerged.
 It was also the first submarine to incorporate a fully reliable underwater navigation system.
 However, conservatives in the Spanish naval hierarchy terminated the project despite two years of successful tests.
 Her operational abilities have led some to call her the first U-boat.
A submarine (or simply sub) is a watercraft capable of independent operation underwater.
 It differs from a submersible, which has more limited underwater capability.
 The term most commonly refers to a large, crewed vessel.
 It is also sometimes used historically or colloquially to refer to remotely operated vehicles and robots, as well as medium-sized or smaller vessels, such as the midget submarine and the wet sub.
 The noun "submarine" evolved as a shortened form of "submarine boat"; by naval tradition, submarines are usually referred to as "boats" rather than as "ships", regardless of their size ("boat" is usually reserved for seagoing vessels of relatively small size).
The Autonomous Navigation System (ANS) was a combat vehicle upgrade used to convert manned vehicles to autonomous unmanned capability or to upgrade already unmanned vehicles to be autonomous.
The AN/BLQ-11 autonomous Unmanned Undersea Vehicle (formerly the Long-Term Mine Reconnaissance System (LMRS)) is a torpedo tube-launched and tube-recovered underwater search and survey unmanned undersea vehicle (UUV) capable of performing autonomous minefield reconnaissance as much as 200 km in advance of a host "Los Angeles"-, "Seawolf"-, or "Virginia"-class submarine.
An autonomous underwater vehicle (AUV) is a robot that travels underwater without requiring input from an operator.
 AUVs constitute part of a larger group of undersea systems known as unmanned underwater vehicles, a classification that includes non-autonomous remotely operated underwater vehicles (ROVs) – controlled and powered from the surface by an operator/pilot via an umbilical or using remote control.
 In military applications a AUV is more often referred to as unmanned undersea vehicle (UUV).
 Underwater gliders are a subclass of AUVs.
Unmanned underwater vehicles (UUV), sometimes known as underwater drones, are any vehicles that are able to operate underwater without a human occupant.
 These vehicles may be divided into two categories, remotely operated underwater vehicles (ROVs), which are controlled by a remote human operator, and autonomous underwater vehicles (AUVs), which operate independently of direct human input.
 The latter category would constitute a kind of robot.